Abstract: Provided are a thermal barrier coating and a preparation method thereof, which belong to the field of coating technology. The thermal barrier coating has a double-layer coating structure, and includes an intermediate layer attached to a surface of a metal bonding layer, and a top layer, wherein the intermediate layer is formed by atmospheric plasma spraying YSZ porous microspheres, and the top layer is formed by atmospheric plasma spraying Yb—Gd codoped YSZ porous microspheres; the intermediate layer is in contact with the surface of the metal bonding layer, and the top layer is directly exposed to a high-temperature gas environment.

Abstract: A manufacturing method of a package structure including the following steps is provided. A carrier is provided. An anti-warpage structure is formed on the carrier. And a redistribution layer is formed on the carrier. In the normal direction of the carrier, a warpage trend of the anti-warpage structure is opposite to a warpage trend of the redistribution layer.

Abstract: A rigid multilayer decorative surface covering is proposed. The surface covering has a thickness and comprises a sandwiched reinforcement composite layer comprising a thermoplastic polymer matrix having a top and a bottom surface, the sandwiched reinforcement composite layer comprising reinforcement layers on the top and bottom surfaces. The sandwiched reinforcement composite layer has a thickness comprised in the range from 25% to 85% of the thickness of the rigid decorative surface covering. A method for manufacturing the rigid multilayer decorative surface covering is also disclosed.

Abstract: Mo doped AlCrSiN/Mo self-lubricating films and a preparation method thereof are provided. The AlCrSiN/Mo self-lubricating films are prepared by doping Mo element into the AlCrSiN films, and the Mo content in the resulted films is in the range of 0.3-6.3 at. %. The films are prepared on the substrates by high power impulse magnetron sputtering (HiPIMS) and pulsed DC magnetron sputtering hybrid coating technology. The prepared AlCrSiN/Mo self-lubricating films possess high hardness, good toughness, excellent antifriction characteristics and good chemical stability.

Abstract: The present disclosure relates to an optical laminate for a flexible display device comprising: a support substrate layer; and a hard coating layer positioned on at least one surface of the support substrate layer and having a thickness of 10 ?m to 250 ?m, wherein the hard coating layer is a polysiloxane containing 70 mol % or more of a repeating unit including an epoxy group-containing functional group; and an elastomeric polymer including polycaprolactone polyol, and wherein the polysiloxane has a number average molecular weight of more than 3,000 and less than 10,000, and a polydispersity Index (PDI) of 1.0 or more and less than 5.0, and a flexible display device including the same.

Abstract: An aspect of the present invention relates to a cold-rolled steel plate for hot forming, which is excellent in corrosion-resistance and spot-weldability, contains, by weight %, C: 0.1-0.4%, Si: 0.5-2.0%, Mn: 0.01-4.0%, Al: 0.001-0.4%, P: 0.001-0.05%, S: 0.0001-0.02%, Cr: 0.5% to less than 3.0%, N: 0.001-0.02%, and a balance of Fe and inevitable impurities, satisfying formula (1) below, and includes an Si amorphous oxidation layer continuously or discontinuously formed at a thickness of 1 nm-100 nm on the surface thereof. Formula (1): 1.4?0.4*Cr+Si?3.2 (wherein element symbols denote measurements of respective element contents by weight %).

Abstract: According to one aspect, a composite film may include a substrate, and a protection coating overlying the substrate. The protection coating may include a urethane acrylate 6-functional oligomer, and a urethane acrylate 2-functional oligomer. The protection coating may further include a urethane acrylate oligomer ratio UAC6/UAC2 of at least about 0.5 and not greater than about 3, where UAC6 is equal to the content of the urethane acrylate 6-functional oligomer in wt. % for a total weight of the protection coating and UAC2 is equal to the content of the urethane acrylate 2-functional oligomer in wt. % for a total dry weight of the protection coating.

Abstract: The present invention provides a heat shrinkable multilayer film that makes it possible to produce a heat shrinkable label having high seal strength regardless of interlaminar strength, and that also has excellent transparency. The present invention also provides a heat shrinkable label including the heat shrinkable multilayer film. Provided is a heat shrinkable multilayer film including: front and back layers each containing a polyester resin; an interlayer containing a polystyrene resin; and adhesive layers, wherein the front and back layers and the interlayer are stacked with the adhesive layers interposed therebetween, and the adhesive layers each contain a polyester resin having a glass transition temperature of 77° C. or lower.

Abstract: The present invention provides a heat shrinkable multilayer film that makes it possible to produce a heat shrinkable label having high seal strength regardless of interlaminar strength, and that also has excellent transparency. The present invention also provides a heat shrinkable label including the heat shrinkable multilayer film. Provided is a heat shrinkable multilayer film including: front and back layers each containing a polyester resin; an interlayer containing a polystyrene resin; and adhesive layers, wherein the front and back layers and the interlayer are stacked with the adhesive layers interposed therebetween, and the adhesive layers each contain a polyester resin having a glass transition temperature of 77° C. or lower.

Abstract: A cavity-containing polyester film is disclosed, including a layer (layer A) which has therein cavities, and layers (layers B) which each include a polyester resin containing inorganic particles and which are laminated, respectively, over both surfaces of the layer A. The layer A includes a composition including a polyester resin and a polypropylene resin. The polypropylene resin satisfies requirements of: (1) the melt flow rate (MFR) ranges from 1.0 to 10 g/10-minutes (at a temperature of 230° C. under a load of 2.16 kg); (2) the deflection temperature is 85° C. or higher under load (at a bending stress of 0.45 MPa); and (3) the weight-average molecular weight Mw ranges from 200,000 to 450,000 (measured by gel permeation chromatography (GPC)); and the molecular weight distribution ranges from 2 to 6 (being represented as the ratio of the weight-average molecular weight Mw to the number-average molecular weight Mn of the polypropylene resin (Mw/Mn)).

Abstract: Provided is an interlayer film for laminated glass capable of suppressing the discoloration by the light and heat in an interlayer film including a resin layer colored with a coloring agent. The interlayer film for laminated glass according to the present invention has an infrared reflective layer, and a first resin layer containing a thermoplastic resin, the first resin layer is arranged on a first surface side of the infrared reflective layer, the infrared reflective layer has a first maximum reflection wavelength at a wavelength of 350 nm to 450 nm, and a second maximum reflection wavelength at a wavelength of 800 nm or more, each of reflectance at the first maximum reflection wavelength and reflectance at the second maximum reflection wavelength is 15% or more, and the first resin layer contains a coloring agent.

Abstract: A display device includes a display panel including a front surface and a second surface which is opposite to the front surface; a front laminated structure attached to the front surface of the display panel; and a rear laminated structure attached to the second surface of the display panel. Each of the front laminated structure and the rear laminated structure includes a bonding member, and an average modulus of the bonding member of the front laminated structure is smaller than an average modulus of the bonding member of the rear laminated structure.

Abstract: Provided is a packaging material for a power storage device capable of securing excellent formability without causing pinholes and/or cracks even when deep depth forming is performed and also capable of sufficiently preventing delamination even when deep depth forming is performed or even when it is used under severe environments, such as, e.g., high temperature and high humidity. [Solving means] The packaging material for a power storage device has a configuration including a heat resistant resin layer 2 serving as an outer layer, a heat fusible resin layer 3 serving as an inner layer, and a metal foil layer 4 disposed between both the two layers. The heat resistant resin layer 2 is composed of a heat resistant resin film with a hot water shrinkage percentage of 1.5% to 12%. The heat resistant resin layer 2 and the metal foil layer 4 are bonded via an outer adhesive layer 5 composed of a cured film of an electron beam curable resin composition.

Abstract: A method and apparatus for a continuous compression molding machine. The continuous compression molding machine comprises a tooling die, extending through a heating zone and a cooling zone, a tooling sleeve, and a biasing system. The tooling sleeve corresponds to the tooling die and is for use in forming a thermoplastic composite part from a thermoplastic composite charge when the tooling sleeve with the thermoplastic composite charge is moved with respect to the tooling die through the heating zone and the cooling zone. The biasing system is configured to hold the thermoplastic charge at a first angle within the heating zone and hold the thermoplastic composite charge at a second angle within the cooling zone, as the tooling sleeve moves through the heating zone and the cooling zone with the thermoplastic composite charge. The first angle is different from the second angle.

Abstract: A foldable electronic device module includes: a glass-containing cover element having a thickness from about (25) ?m to about (200) ?m, an elastic modulus from about (20) to (140) GPa, and first and second primary surfaces; a stack comprising: (a) an interlayer having an elastic modulus from about (0.01) to (10) GPa and a thickness from about 50 to (200) ?m, and (b) a flexible substrate having a thickness from about (100) to (200) ?m; and a first adhesive joining the stack to the cover element, and comprising an elastic modulus from about (0.001) to (10) GPa and a thickness from about (5) to (25) ?m. Further, the module comprises an impact resistance characterized by tensile stresses of less than about (4100) MPa and less than about (8300) MPa at the first and second primary surfaces of the cover element, respectively, upon an impact in a Pen Drop Test.

Abstract: The purpose of the present invention is to provide a fiber-reinforced resin material having minimal directionality of strength as well as excellent productivity, a method and device for manufacturing a fiber-reinforced resin material whereby a molded article is obtained, and a device for inspecting a fiber bundle group. A method for manufacturing a sheet-shaped fiber-reinforced resin material in which a paste (P1) is impregnated between cut fiber bundles (CF), the method for manufacturing a fiber-reinforced resin material including a coating step applying a coating of a paste (P1) on a first sheet (S11) conveyed in a predetermined direction, a cutting step for cutting a long fiber bundle (CF) using a cutter (113A), a scattering step for dispersing the cut fiber bundles (CF) and scattering the cut fiber bundles (CF) on the paste (P1), and an impregnation step for pressing a fiber bundle group (F1) and the paste (P1) on the first sheet (S11) and impregnating the paste (P1) between the fiber bundles (CF).

Abstract: A multilayer structure includes a layer of a resin composition containing an ethylene-vinyl alcohol copolymer and a thermoplastic elastomer, wherein a mass ratio of the ethylene-vinyl alcohol copolymer to the thermoplastic elastomer is from 65/35 to 95/5 and the layer of the resin composition has one surface directly adjacent to a layer of polyolefin with no polar functional group. A multilayer structure is thus provided that is excellent in gas barrier properties, transparency, and flexibility and also has good delamination properties between the layer of the resin composition and the layer of the polyolefin with no polar functional group.

Abstract: A laminate film with moderate barrier properties can include: a machine direction oriented (MDO) blown polyethylene substrate laminated to a blown polyethylene sealant film, wherein the blown polyethylene sealant film comprises about 5 wt % to about 25 wt % of hydrocarbon resin. Preferably, a polymeric composition of the laminate film is about 90 wt % to about 100 wt % of polyethylene and hydrocarbon resin cumulatively.

Abstract: A laminated glass article includes a glass core layer and a glass cladding layer adjacent to the glass core layer. At least one of the glass core layer or the glass cladding layer is a tinted layer. The tinted layer can include a tinting agent that imparts a color to the tinted layer.

Abstract: The present disclosure relates to an outer case for a flexible rechargeable battery, including a first resin layer configured to include a first patterned area, a moisture barrier layer disposed on the first resin layer to include a second patterned area, a second resin layer disposed on the moisture barrier layer to include a third patterned area, and a stress relaxation layer configured to cover the third patterned area.

Abstract: Provided is a molding packaging material capable of sealing without causing sealing failure, significantly reducing cleaning frequency of a seal bar to improve productivity, and preventing occurrence of delamination. The molding packaging material includes a PBT terephthalate (PBT) layer 2, a heat fusible resin layer 3, and a metal foil layer 4 between the two layers. The PBT layer 2 and the metal foil layer 4 are bonded via an outer adhesive layer 5. The outer adhesive layer 5 is formed of a urethane adhesive cured film composed of a polyester polyol, a polyfunctional isocyanate compound, and polyhydric alcohol. The polyester polyol contains a dicarboxylic acid component, the dicarboxylic acid component includes an aromatic dicarboxylic acid. The dicarboxylic acid component contains an aromatic dicarboxylic acid. The content rate of the aromatic dicarboxylic acid in the dicarboxylic acid component is 40 mol % to 80 mol %. The Young's modulus of the cured film of the urethane adhesive is 70 MPa to 400 MPa.

Abstract: Implementations of a semiconductor device may include a first largest planar surface, a second largest planar surface and a thickness between the first largest planar surface and the second largest planar surface; and one of a permanent die support structure, a temporary die support structure, or any combination thereof coupled to one of the first largest planar surface, the second largest planar surface, the thickness, or any combination thereof. The first largest planar surface, the second largest planar surface, and the thickness may be formed by at least two semiconductor die. The warpage of one of the first largest planar surface or the second largest planar surface may be less than 200 microns.

Abstract: A display device includes a display panel including a front surface and a second surface which is opposite to the front surface; a front laminated structure attached to the front surface of the display panel; and a rear laminated structure attached to the second surface of the display panel. Each of the front laminated structure and the rear laminated structure includes a bonding member, and an average modulus of the bonding member of the front laminated structure is smaller than an average modulus of the bonding member of the rear laminated structure.

Abstract: A silicon-based molten composition according to an exemplary embodiment is used for a solution growth method for forming a silicon carbide single crystal, and represented by Formula 1 including silicon (Si), a first metal M1, a second metal M2 and a third metal M3, wherein the first metal M1 is one or more selected from the group consisting of nickel (Ni) and manganese (Mn), the second metal M2 is one or more selected from the group consisting of scandium (Sc) and titanium (Ti), and the third metal M3 is one or more selected from the group consisting of aluminum (Al) and gallium (Ga): SiaM1bM2cM3d??Formula 1 wherein a is 0.3 to 0.8, b is 0.1 to 0.5, c is 0.01 to 0.3, d is 0.01 to 0.2, and a+b+c+d is 1.

Abstract: A cutting implement including a metal substrate and a coating is provided. The coating has zirconium PVD (ZrCRTiNO), which provides protection against corrosion of the metal substrate. In some instances, the zirconium PVD provides protection from corrosion for at least 200 hours. A layer of titanium nitride (TiN) can be added to the coating to increase the hardness of the metal substrate. In such an embodiment, the layer of titanium nitride (TiN) is applied before the zirconium PVD (ZrCRTiNO). Titanium nitride (TiN) coated steel is 3 to 5 times harder than uncoated steel. Thus, a combination of titanium nitride (TiN) and zirconium PVD (ZrCRTiNO) as a coating on a metal substrate can increase the life of the metal substrate by providing increased hardness and anti-corrosive properties.

Abstract: A plank has a first portion with at least three layers. The first layer is of a plant material, and has an inner surface that includes a nonwoven fabric or a fiberglass mesh. The second layer is of an adhesive paper material that includes a macromolecular glue where the macromolecular glue is 50-55% melamine, 35-40% plasticizer, and 3-5% formaldehyde. The third layer is one of bamboo, wood, or paper. The plank has a second portion, which may be of a plastic composite base material or a magnesium oxide composite base material. When the second portion is of a plastic composite material, the first portion is fused to the second portion by cold pressing or a polyurethane reactive adhesive. When the second material is of a magnesium oxide composite base material, the first portion is thermally pressed to the second portion by cold pressing, hot pressing or a polyurethane reactive adhesive.

Abstract: A metal sheet for containers includes a metal sheet and a polyester film which is laminated on a surface of the metal sheet to be an inner surface side of containers. The polyester film contains a wax in an amount of 0.010 to 2.000 mass %, and has a dipole-dipole force of 40 mN/m or less.

Abstract: A glass article includes a glass core layer and a glass cladding layer adjacent to the core layer. A coefficient of thermal expansion (CTE) of the core layer is greater than a CTE of the cladding layer. The core layer has a tensile stress, and the cladding layer has a compressive stress. A retained strength of the glass article is a strength determined after abrasion of an outer surface of the glass article with 1 mL of 90 grit SiC particles for 5 seconds at an abrasion pressure, and a ratio of the retained strength at an abrasion pressure of 25 psi to the retained strength at an abrasion pressure of 5 psi is at least about 0.3.

Abstract: Embodiments disclosed herein include multilayer blown films having a cling layer and a release layer, wherein the cling layer comprises (i) an ethylene/alpha-olefin elastomer, and (ii) a polyethylene polymer selected from ultra-low density polyethylene, a very low density polyethylene, or combinations thereof, and the release layer comprises an ethylene/alpha-olefm resin.

Abstract: The present invention relates to a polypropylene composition, an injection molded article comprising the polypropylene composition, a foamed article comprising the polypropylene composition as well as the use of a polypropylene homopolymer (H-PP1) for reducing the 5stiffness reduction factor of a foamed injection molded article by at least 40 as determined by the difference of the flexural modulus measured according to ISO 178 of the non-foamed and foamed injection molded article and compared to an article comprising the same amount of a polypropylene which has been polymerized in the presence of a Ziegler-Natta catalyst.

Abstract: The present invention is directed to a polypropylene composition (C) comprising abase polymer being a first polypropylene (PP1) and a second polypropylene (PP2). The present invention is further directed to a film and a fiber comprising said polypropylene composition (C).

Abstract: A secondary battery is disclosed. In one aspect, the secondary battery includes an electrode assembly, a case accommodating the electrode assembly and a lead member extending from the electrode assembly to outside of the case. The secondary battery also includes an insulation member at least partially covering the lead member, the insulation member having an exterior portion that is located outside the case and an interior portion that is located inside the case, wherein the interior portion has a first thickness, and wherein at least part of the exterior portion has a second thickness less than the first thickness. The secondary battery may have a compact structure, and insulation characteristics of the secondary battery may be improved.

Abstract: An organic light-emitting device includes: a first electrode; a second electrode facing the first electrode; and an organic layer between the first electrode and the second electrode and including an emission layer. The emission layer includes at least one doping layer and at least one non-doping layer. The doping layer comprises a first host, a second host, and a dopant.

Abstract: Aspects of the present disclosure relate to compositions and processes suitable for use in forming a lid for a hot food or beverage container, the lid being made from a multi-layer sheet that includes a substrate layer and a cap layer made from polyolefin-based compositions. The lid has a density less than water at 23° C., allowing the lid to be recycled in a recycling stream.

Abstract: A multilayer film (10) having excellent mechanical strength and transparency comprise a core layer (12), at least two skin layers, and at least two sub-skin layers disposed between the core layer (12) and the two skin layers. The core layer (12) comprises at least 60 wt. % linear low density polyethylene (LLDPE). The sub-skin layers comprise at least 60 wt. % low density polyethylene (LDPE). The skin layers comprise at least 80 wt. % of LLDPE wherein the LLDPE comprises C6 LLDPE, C8 LLDPE, or combinations thereof, and each skin layer has a thickness of less than 25% of the overall thickness of the multilayer film (10). The multilayer film (10) comprises at least 0.1 wt. % ultraviolet stabilizer.

Abstract: A transmittance-variable film having a double-cell structure or a single-cell structure capable of suppressing formation of bubbles inside a liquid crystal layer or at the interface between a base film and a pressure-sensitive adhesive layer under high-temperature and high-humidity reliability conditions is provided. An exemplary transmittance-variable film can be applied to various applications, including various construction or automotive materials that require control of transmittance, or eyewear, such as augmented reality experience or sports goggles, sunglasses or helmets.

Abstract: Various enhancements of tabbed seals are provided herein with enhanced tab functionality. Such enhancements include a lacquer coating, such as one-part and two-part coatings, which can help minimize tab sticking to the lower laminate. Further, the lacquer can help decrease air bubbles under the tab and also provide visual enhancements to the tab.

Abstract: Provided is a laminated glass where multiple glass sheets are joined via an interlayer film [J], wherein i) mean density of the laminated glass is 1.2-1.5 g/cm3 at 25° C., ii) the interlayer film [J] has layered structure comprising at least two adhesive layers [G], comprising an adhesive mainly containing a thermoplastic elastomer having an alkoxysilyl group [F]; and at least one rigid resin layer [H] positioned therebetween, iii) storage modulus of the rigid resin layer [H] is higher than that of the adhesive layer [G], iv) storage modulus of the interlayer film [J] calculated from a formula 1 or measured is 2.0×108-1.0×109 Pa at ?20° C. and 1.0×108-8.0×108 Pa at 40° C., G?=(?iti)/(?i(ti/G?i))??(1) where G?: calculated storage modulus of the interlayer film, G?i: storage modulus of an i-th layer of the interlayer film, ti: thickness of the i-th layer, ?i: sum of numerical values of the i-th layer.

Abstract: Provided is an interlayer film for laminated glass that can improve bending rigidity and sound insulating properties of laminated glass and can inhibit the occurrence and growth of foam in the laminated glass. An interlayer film for laminated glass according to the present invention has a single-layer structure or a two or more-layer structure and includes a first layer containing a polyvinyl acetal resin and a plasticizer, in which a glass transition temperature of the first layer is 10° C. or lower, and an elastic modulus of the first layer at 30° C. is 285,000 Pa or greater.

Abstract: The purpose of the present invention is to provide a chemically strengthened glass in which reduction in glass surface strength is effectively suppressed even without performing a polishing treatment after a prolonged chemical strengthening treatment has been conducted at a high temperature. The present invention relates to a chemically strengthened glass having a specific glass composition, wherein: the surface roughness (Ra) is a specific value or greater; the compressive stress layer depth of a surface layer is a specific value or greater; by setting the hydrogen concentration in the glass surface layer to be within a specific range, the surface strength of the glass is dramatically improved even without performing an etching treatment using hydrofluoric acid or polishing the glass surface after a prolonged chemical strengthening treatment has been conducted at a high temperature.

Abstract: A wash-off label includes a face film. According to an embodiment the face film is at least uniaxially oriented and comprises at least one of the polyolefins: cyclic olefin copolymer, propylene terpolymer, propylene random copolymer, propylene homopolymer, heterophasic polypropylene and linear low density polyethylene. The face film has density between 0.85 and 0.94 g/cm3 at room temperature (23±2° C.). Further the invention relates to a labelled item comprising the wash-off label.

Abstract: A vehicle floor configured to direct water flow comprising a floor portion that extends front-to-back and side-to-side in the vehicle including a surface that faces the vehicle occupant. The floor portion surface includes one or a plurality of raised rib portions and one or a plurality of web regions in-between said raised rib portions, wherein the one or plurality of web regions provides a downwardly sloping floor surface that is configured to direct water to one or a plurality of desired locations.

Abstract: A material includes a transparent substrate coated with a stack of thin layers including an alternation of three functional silver-based metallic layers. This material makes it possible to obtain a multiple glazing having good thermal performance results, in particular a selectivity greater than 2, excellent color neutrality and low optical sensitivity.

Abstract: This disclosure provides a composition of matter nucleated from a homogenous nucleation to form a self-assembled binder-less mesoporous carbon-based particle. In some implementations, the composition includes: a plurality of electrically conductive 3D aggregates formed of graphene sheets and sintered together to define a 3D hierarchical open porous structure comprising mesoscale structuring with micron-scale fractal structuring and configured to provide an electrical conduction between contact points of the graphene sheets. A porous arrangement is formed in the 3D hierarchical open porous structure and is arranged to contain a liquid electrolyte configured to provide ion transport through a plurality of interconnected porous channels in the 3D hierarchical open porous structure.

Abstract: A method for making a joint structure including embedding a portion of at least two layers of a third component into a first component and interleaving at least one layer of a second component with an unembedded portion of the at least two layers of the third component, wherein the third component inhibits galvanic corrosion between the first and second components, the first component has a first CTE, the second component has a second CTE that is different from the first CTE, the third component has a third CTE that is between the first CTA and the second CTE, and the third component comprises a mesh component.

Abstract: The present invention relates to a novel plastisol composition that cures at a temperature much lower than conventional plastisols. Also disclosed is a method of applying the composition.

Abstract: A multilayer electronic component includes a body including a dielectric layer and an internal electrode; and an external electrode including an electrode layer disposed on the body and connected to the internal electrode and a conductive resin layer disposed on the electrode layer, and the conductive resin layer includes a metal wire, a conductive metal, and a base resin.

Abstract: A glass laminate includes a glass core layer having a core coefficient of thermal expansion (CTE) and a glass cladding layer adjacent to the core layer and having a cladding CTE that is less than the core CTE such that the core layer is in tension and the cladding layer is in compression. A stress profile of the glass laminate includes a compressive peak disposed between an outer surface of the cladding layer and an inner surface of the cladding layer.

Abstract: A method of producing glass-based articles having sections of different thicknesses is provided, where a maximum central tension in a thinner section is less than that of a thicker section. The method includes reducing the thickness of a region of a glass-based article that includes a compressive stress layer extending from a surface to a depth of compression to form a glass-based article with multiple thickness regions, and then ion exchanging the glass-based article to form a stress profile in the thinner region that has a maximum central tension that is less than a maximum central tension of a stress profile of the thicker region. The glass articles produced by the method are also provided.

Abstract: The invention relates to glass articles suitable for use as electronic device housing/cover glass which comprise a glass ceramic material. Particularly, a cover glass comprising an ion-exchanged glass ceramic exhibiting the following attributes (1) optical transparency, as defined by greater than 90% transmission at 400-750 nm; (2) a fracture toughness of greater than 0.6 MPa·m1/2; (3) a 4-point bend strength of greater than 350 MPa; (4) a Vickers hardness of at least 450 kgf/mm2 and a Vickers median/radial crack initiation threshold of at least 5 kgf; (5) a Young's Modulus ranging between about 50 to 100 GPa; (6) a thermal conductivity of less than 2.0 W/m° C., and (7) and at least one of the following attributes: (i) a compressive surface layer having a depth of layer (DOL) greater and a compressive stress greater than 400 MPa, or, (ii) a central tension of more than 20 MPa.