Abstract: Disclosed is a composition for ferroelectric thin film formation which is used in the formation of a ferroelectric thin film of one material selected from the group consisting of PLZT, PZT, and PT. The composition for ferroelectric thin film formation is a liquid composition for the formation of a thin film of a mixed composite metal oxide formed of a mixture of a composite metal oxide (A) represented by general formula (1): (PbxLay)(ZrzTi(1-z))O3 [wherein 0.9<x<1.3, 0?y<0.1, and 0?z<0.9 are satisfied] with a composite oxide (B) or a carboxylic acid (B) represented by general formula (2): CnH2n+1COOH [wherein 3?n?7 is satisfied]. The composite oxide (B) contains one or at least two elements selected from the group consisting of P (phosphorus), Si, Ce, and Bi and one or at least two elements selected from the group consisting of Sn, Sm, Nd, and Y (yttrium).

Abstract: The present disclosure relates to porous ceramic articles and a method of making the same. The porous ceramic articles have microstructure of sinter bonded or reaction bonded large pre-reacted particles and pore network structure exhibiting large pore necks. The method of making the porous ceramic articles involves using pre-reacted particles having one or more phases. A plastic ceramic precursor composition is also disclosed. The composition includes a mixture of at least one of dense, porous, or hollow spheroidal pre-reacted particles and a liquid vehicle.

Abstract: The present invention relates to composite materials with a high dielectric constant and high dielectric strength and to methods of producing the composite materials. The composite materials have high dielectric constants at a range of high frequencies and possess robust mechanical properties and strengths, such that they may be machined to a variety of configurations. The composite materials also have high dielectric strengths for operation in high power and high energy density systems. In one embodiment, the composite material is composed of a trimodal distribution of ceramic particles, including barium titanate, barium strontium titanate (BST), or combinations thereof and a polymer binder.

Abstract: Mixer for ceramic feedstock pellets with a tank, a mixing means, and heat exchange means including cooling means for the cooling of the content of this tank. Control means control the heat exchange means which include heating means arranged to heat the content of this tank to a temperature comprised between a lower temperature (TINF) and a higher temperature (TSUP) stored in a memory for a specific mixture, and the heating means exchange energy with a heat exchange and mixing temperature maintenance circuit, external to this tank, and wherein the thermal inertia of this circuit is higher than that of this fully loaded tank. The invention also concerns a method for mixing raw material for powder metallurgy, implementing a specific injection moulding composition and a specific binder.

Abstract: Provided are aluminum titanate capable of providing a sintered body having a low coefficient of thermal expansion, a high porosity, and high mechanical strength, a production method of the same, and a sintered body of the columnar aluminum titanate. The columnar aluminum titanate has an average aspect ratio (=(number average major-axis length)/(number average minor-axis length)) of 1.5 or more and its magnesium content is preferably within the range of 0.5% to 2.0% by weight relative to the total amount of titanium and aluminum in terms of their respective oxides.

Abstract: A dielectric ceramic composition is represented by a general formula “xBi2O3-yZnO-(z-a)Nb2O5-aV2O5”. In the general formula, values “x”, “y”, “z” and “a” respectively satisfy the following conditions: 2.90?x?3.10, 1.90?y?2.10, 1.90?z?2.10, and 0.0005?a?0.020.

Abstract: A method of forming composition-modified barium titanate ceramic particulate includes mixing a plurality of precursor materials and a precipitant solution to form an aqueous suspension. The plurality of precursors include barium nitrate, titanium chelate, and a metal or oxometal chelate. The precipitant solution includes tetraalkylammonium hydroxide and tetraalkylammonium oxalate. The method further includes treating the aqueous suspension at a temperature of at least 150° C. and a pressure of at least 200 psi, and separating particulate from the aqueous suspension after treating.

Abstract: A sintered bead presenting the following chemical analysis, in percentages by weight and for a total of 100%: ZrO2+HfO2: 78%-85%; CeO2: ?15%; Al2O3: >0.1%; additive: >0.1%; impurities: <1%; the additive being selected from MnO, MnO2, Fe2O3, CuO, TiO2, Y2O3, Sb2O3, ZnO, and mixtures thereof. Application to microgrinding and to microdispersion.

Abstract: The invention is to provide an aluminum titanate-based ceramics showing a good mechanical strength. The invention is an aluminum titanate-based ceramics obtained by firing a starting material mixture which contains a titanium element and an aluminum element, and further contains a chromium element and/or a tungsten element. Preferably, a content of a chromium source which contains the chromium element is from 0.001 to 5 parts by mass, and a content of a tungsten source which contains the tungsten element is from 0.001 to 1.0 part by mass relative to 100 parts by mass of the starting material mixture.

Abstract: Disclosed herein is a material having formula (A3+((4-5n)/3)-?B5+n)xTi1-xO2, wherein 0<n<0.8, ? and x is such that the material has a rutile structure, 0<n<0.8, ? is between 0 and 0.025 inclusive, A3+ is a trivalent positive ion and B5? is a pentavalent positive ion. A process for making the material, and its use as a dielectric material, are also described.

Abstract: The present invention provides a ceramic material capable of demonstrating compactness and Li ion conductivity to an extent that enables the use of the ceramic material as a solid-state electrolyte material for a lithium secondary battery, or the like. A ceramic material containing Li, La, Zr, Nb and/or Ta, as well as O and having a garnet-type or garnet-like crystal structure is used.

Abstract: Ceramic materials comprising charge-compensating dopants and related methods. In some embodiments, the materials may comprise dopants such as Y2O3, Gd2O3, Nb2O5, and/or Ta2O5. Some embodiments may comprise a molar concentration of Y2O3 and/or Gd2O3 that is at least approximately equal to the molar concentration of Nb2O5 and/or Ta2O5. Certain embodiments and implementations may comprise particular, unique concentrations or concentration ranges of various compounds/materials in order to improve performance for use of such ceramic materials as biomedical implants.

Abstract: Shape memory and pseudoelastic martensitic behavior is enabled by a structure in which there is provided a crystalline ceramic material that is capable of undergoing a reversible martensitic transformation and forming martensitic domains, during such martensitic transformation, that have an average elongated domain length. The ceramic material is configured as an oligocrystalline ceramic material structure having a total structural surface area that is greater than a total grain boundary area in the oligocrystalline ceramic material structure. The oligocrystalline ceramic material structure includes an oligocrystalline ceramic structural feature which has an extent that is less than the average elongated domain length of the crystalline ceramic material.

Abstract: Ceramic material of the general formula: [SE1-xMIIx][Cr1-y-zRyLz]O3, wherein SE stands for one or more rare earth metals, MII stands for one or more metals of the oxidation state +II, L stands for Al and/or Ga, R stands for one or more metals selected from Fe, Zn, Ge, Sn, and it holds that: 0<x<1; 0<y<1; 0.5<z<1; y+z<1.

Abstract: A zirconia sintered body having not only high strength but also excellent aesthetic properties. A colored translucent zirconia sintered body, characterized by containing an iron compound and from 2 to 4 mol % of yttria, showing a lightness L* of from 51 to 80 in L*a*b* color system, and having a relative density of at least 99.80%. The colored zirconia sintered body preferably has a total light transmittance of at least 20% as measured at a sample thickness of 1 mm and with a D65 light source. The colored translucent zirconia sintered body has aesthetic properties equivalent to those of natural teeth and is particularly suitable for a zirconia sintered body to be used for dental applications, and further, suitable for a mill blank such as an artificial tooth material or the like, and an orthodontic bracket.

Abstract: There are provided a dielectric composition and a multilayer ceramic electronic component using the same, the dielectric composition including dielectric grains having a perovskite structure represented by ABO3, wherein the dielectric grain includes a base material, in which at least one rare earth element RE is solid-solubilized in at least one of A and B, and a transition element TR, and a ratio (TR/RE) of the transition element to the rare earth element is 0.2 to 0.8.

Abstract: A glass ceramic composition includes a SrZrO3 ceramic, a Li2O—MgO—ZnO—B2O3—SiO2-based glass, Mg2SiO4 in an amount of about 5 to 40 weight percent, and a SrTiO3 ceramic in an amount in the range of about 0 to about 6 weight percent of the total. The Li2O—MgO—ZnO—B2O3—SiO2-based glass accounts for about 1 to about 12 weight percent of the total.

Abstract: A transparent dielectric composition comprising tin, oxygen and one of aluminum or magnesium with preferably higher than 15% by weight of aluminum or magnesium offers improved thermal stability over tin oxide with respect to appearance and optical properties under high temperature processes. For example, upon a heat treatment at temperatures higher than 500 C, changes in color and index of refraction of the present transparent dielectric composition are noticeably less than those of tin oxide films of comparable thickness. The transparent dielectric composition can be used in high transmittance, low emissivity coated panels, providing thermal stability so that there are no significant changes in the coating optical and structural properties, such as visible transmission, IR reflectance, microscopic morphological properties, color appearance, and haze characteristics, of the as-coated and heated treated products.

Abstract: The invention relates to a ceramic particle mixture containing, as components, a predominant portion by weight of frittable particles made of a ceramic material and particles of at least one additive, at least one additive being a dispersed absorbent solid inorganic material which has, for a laser beam emitted at a predetermined wavelength, a specific absorptivity that is greater than the absorptivity of the other components of the ceramic mixture, and which drastically breaks down when gas is emitted in the presence of the laser beam, said additive being present in proportions of less than 5% of the dry weight. The invention also relates to ceramic parts produced from such a mixture.

Abstract: The invention provides a modified perovskite type composite oxide in which the particle surface of a perovskite type composite oxide is coated with a first component of at least one selected from TiO2 and SiO2 and a second component of at least one selected from a group consisting of Al, Zr, Nd, La, Ce, Pr, and Sm, wherein the coating is formed by hydrolyzing at least one selected from a hydrolyzable TiO2 precursor and a hydrolyzable SiO2 precursor as a source of the first component and a salt of at least one selected from a group consisting of Al, Zr, Nd, La, Ce, Pr, and Sm as a source of the second component, and then calcining them.

Abstract: Disclosed herein is a dielectric composition including: a dielectric ceramic represented by the following equation: X2Y2Ti4O12 (wherein X is Li, or Na, and Y is Nd, Sm or Bi); and any one additive selected from BaZ2Ti4O12 (wherein Z is Nd, Sm or Bi), (Ti0.55Zn0.15A0.3)O2 (wherein A is Ta or V), CaTiO3, and TiO2.

Abstract: A sintered compact contains cubic sialon, ?-sialon, and at least one of a first component and a second component. The first component is at least one element selected from the group consisting of iron, cobalt, nickel, and group 4 elements, group 5 elements, and group 6 elements of the periodic table. The second component is at least one compound containing at least one element selected from the group consisting of group 4 elements, group 5 elements, and group 6 elements and at least one element selected from the group consisting of carbon, nitrogen, and boron.

Abstract: The disclosure relates to ceramic-body-forming batch materials comprising at least one pore former and inorganic batch components comprising at least one silica source having a specified particle size distribution, methods of making ceramic bodies using the same, and ceramic bodies made in accordance with said methods. The disclosure additionally relates to methods for reducing pore size variability in ceramic bodies and/or reducing process variability in making ceramic bodies.

Abstract: A high-frequency and low-dielectric-constant ceramic dielectric material matched with nickel internal electrode and a method for producing capacitor using same. The ceramic dielectric material consists of main crystalline phase, modifying additive and sintering flux. The main crystalline phase is MgZrxSi(1?x)O3, wherein 0.05?x?0.15. The modifying additive is one or more of MnO2, Al2O3, CaO, Bi2O3 and TiO2, and the sintering flux is one or more of B2O3, SiO2, ZnO, Li2O, K2O and BaO. The ceramic dielectric material has good uniformity, and excellent dielectric properties, meets the requirements of COG characteristics in EIA standard, and meets the environmental requirements. The ceramic dielectric material can be sintered under the reducing atmosphere and can be matched with nickel electrodes. The chip multilayer ceramic capacitor made of the ceramic dielectric material and nickel internal electrodes has stable performance.

Abstract: A method for producing a metal detectible ceramic, including mixing a first amount of ceramic material with a second metal oxide to define an admixture, forming the admixture into a green body, sintering the green body to yield a densified body, wherein the densified body has a plurality of metallic particles distributed therethrough, and wherein the densified body is detectible by a metal detector.

Abstract: At least two types of fluids to be processed are mixed in a thin film fluid formed between at least two processing surfaces which are approachably and separably disposed facing each other. At least one processing surface rotates relative to the other, and a substance to be separated giving a controlled crystallite diameter is caused to separate. Specific conditions related to a fluid to be processed are varied to control the crystallite diameter of the substance to be separated. The specific conditions are the type of substance to be separated; the concentration of the substance to be separated included in the raw material fluid and/or substance included in the separating fluid; the pH of the raw material fluid and/or separating material fluid; the introduction temperature of the raw material fluid and/or separating fluid; and the introduction velocity of the raw material fluid and/or separating fluid.

Abstract: Translucent zirconia sintered bodies have had a problem that incorporation of titania improves translucency but lowers mechanical strength. The invention provides: a zirconia sintered body containing titanium oxide, the sintered body containing 6-15 mol % yttria and 3-20 mol % titania and having an in-line transmission of 50% or higher when examined at a sample thickness of 1 mm and a measuring wavelength of 600 nm; and a zirconia sintered body having especially high translucency which is a high-quality transparent zirconia sintered body that contains 3-20 mol % titania and 6-15 mol % yttria and has an in-line transmission, as measured at a wavelength of 600 nm, of 73% or higher and a haze value of 2.0% or less and that is highly translucent and is undimmed (cloudless). The invention further relates to a production process in which a powder having the composition is molded and thereafter subjected to ordinary-pressure primary sintering and hot isostatic pressing (HIP) under specific conditions.

Abstract: A mullite-based body including mullite, alumina, and titanium manganese oxide is disclosed. The mullite-based sintered body includes mullite of 79.3 to 85.2 mass %, alumina of 14.2 to 19.8 mass % and MnTiO3 of 0.6 to 1.1 mass %. The mullite-based sintered body has a relative density of 96% or higher. A circuit board and a probe card are also disclosed. The circuit board includes the mullite-based sintered body. The probe card includes the wiring substrate; a surface wiring layer on a surface of the wiring substrate; and a measuring terminal electrically coupled to the surface wiring layers for measuring the electrical characteristics of an electric circuit.

Abstract: There are provided a dielectric composition and a preparation method thereof, the dielectric composition including: a first perovskite powder for a core represented by ABO3: and a second perovskite powder for a shell represented by ABO3, having an average particle diameter corresponding to ? to 1/10 of an average particle diameter of the first perovskite powder, and included in an amount of 1 to 70 parts by weight with respect to 100 parts by weight of the first perovskite powder, wherein particles of the second perovskite powder have pores having a volume fraction of 3 to 50 vol % therein. According to the present invention, there are provided a dielectric composition having excellent dielectric characteristics and electrical characteristics, and a preparation method thereof.

Abstract: A lead-based particulate piezoelectric material has a median diameter of less than 1 ?m and a particle size distribution expressed by [arithmetic deviation/mean] of no greater than 15% and in which no less than 85% of all particles are cubic.

Abstract: Porous composites of acicular mullite and tialite are formed by firing an acicular mullite body in the presence of an oxide of titanium. In some variations of the process, the oxide of titanium is present when the acicular mullite body is formed. In other variations, the oxide of titanium is applied to a previously-formed acicular mullite body. Surprisingly, the composites have coefficients of linear thermal expansion that are intermediate to those of acicular mullite and tialite alone. Some of the tialite is believed to form at grain boundaries and/or points of intersection between acicular mullite needles, rather than merely coating the needles. The presence of the titanium oxide(s) during acicular mullite formation does not significantly affect the ability to produce a highly porous network of mullite needles.

Abstract: This invention relates to a method of making lead-free piezoelectric ceramic films. Specifically, the invention is directed to a method for fabricating lead-free piezoelectric free standing films having enhanced piezoelectric properties. The films may be used for a number of applications including incorporation in microelectronic devices such as energy harvesting devices and sensor technologies.

Abstract: A mixture of fused grains mainly comprising or composed of an oxide phase of pseudo-brookite type and comprising titanium, aluminum and magnesium, the fused grains having the following chemical composition, in weight percentages on the basis of the oxides: less than 55% of Al2O3; more than 30% and less than 70% of TiO2; more than 1% and less than 15% of MgO, the fused grains also corresponding to the following composition, in molar percentages and on the basis of the single oxides Al2O3, TiO2, MgO: 180?3t+a?220, a?50, m=100?a?t, in which: a is the molar percentage of Al2O3; t is the molar percentage of TiO2; m is the molar percentage of MgO. A ceramic product obtained from such fused grains.

Abstract: A ceramic precursor batch composition comprising inorganic ceramic-forming ingredients, a binder, an aqueous solvent and a heteroatom polyol agent. The heteroatom polyol agent can be represented by X(R) where X is at least one of S, N, and P, and R is at least two of CH3, CH2CH2OH, CH2CH2CH2OH, CH2(CHOH)CH3, C(CH2OH)1-3, CH2OH, CH(CH2OH)CHOH, C(O)(CHOH)1-4CH2OH, and CH2CH2CH2OCH3. The presence of the heteroatom polyol agent provides a composition with a lower viscosity and/or a greater batch stiffening temperature (Tonset) allowing for increased rates of extrusion. Methods for producing a ceramic honeycomb body using this ceramic precursor batch composition are also provided.

Abstract: Provided here is a method of producing a monolithic body from a porous matrix, comprising: (i) providing a porous matrix having interstitial spaces and comprising at least a first reactant; (ii) contacting the porous matrix with an infiltrating medium that carries at least a second reactant; (iii) allowing the infiltrating medium to infiltrate at least a portion of the interstitial spaces of the porous matrix under conditions that promote a reaction between the at least first reactant and the at least second reactant to provide at least a first product; and (iv) allowing the at least first product to form and fill at least a portion of the interstitial spaces of the porous matrix, thereby producing a monolithic body, wherein the monolithic body does not comprise barium titanate.

Abstract: There are provided a dielectric composition and a multilayer ceramic electronic component manufactured using the same, the dielectirc composition including dielectric grains having a perovskite structure represented by ABO3, a portion of the dielectric grains having a core-shell structure, wherein dielectric grains having an average length of a core equal to or less than 250 nm and a ratio of the average length of the core to an average length of the dielectric grain below 0.8 may be 50% or more of the portion of dielectric grains having a core-shell structure, so that the multilayer ceramic electronic component manufactured using the dielectric composition can have excellent reliability and secure a high dielectric constant.

Abstract: There are provided a dielectric composition and a multilayer ceramic electronic component manufactured using the same, the dielectric composition including a dielectric grain having a perovskite structure represented by ABO3, wherein the dielectric grain has a core-shell structure in which a content of an additive in a shell is 15% or less, based on an average content of the additive distributed throughout the dielectric grain, so that the multilayer ceramic electronic component manufactured using the dielectric composition can have excellent reliability and secure a high dielectric constant.

Abstract: Provided is a method of manufacturing a transparent sesquioxide sintered body by which a transparent M2O3 type sesquioxide sintered body can be manufactured. A powder including particles of an oxide of at least one rare earth element selected from Y, Sc or lanthanide elements and Zr oxide particles is prepared as a raw material powder, wherein in the particle size distribution of the rare earth element oxide particles, or in the particle size distribution of secondary particles in the case where the rare earth element oxide particles are agglomerated to form the secondary particles, the particle diameter D2.5 value at which the cumulative particle amount from the minimum particle size side is 2.5% based on the total particle amount is in the range from 180 nm to 2000 nm, inclusive. The raw material powder is press molded into a predetermined shape, followed by sintering.

Abstract: There are provided a dielectric composition and a multilayer ceramic electronic component manufactured using the same, the dielectric composition including a dielectric grain having a perovskite structure represented by ABO3, wherein, when an imaginary line is drawn in a direction from a center of the dielectric grain to a grain boundary thereof, a content of rare earth elements in a region corresponding to 0.75 to 0.95% of the dielectric grain from the center of the dielectric grain may be 0.5 to 2.5 at %, based on 100 at % of a B-site ion, so that the multilayer ceramic electronic component manufactured using the dielectric composition can have excellent reliability and secure a high dielectric constant.

Abstract: This invention relates to compositions and applications for a bioceramic composition that includes from about 45 to about 55% by weight of kaolinite (Al2Si2O5(OH)4); from about 5 to about 15% by weight of tourmaline; from about 3 to about 13% by weight of aluminum oxide (Al2O3); from about 11 to about 19% by weight of silicon dioxide (SiO2); and from about 3 wt % to about 13 wt % zirconium oxide (ZrO2).

Abstract: A high energy density multilayer ceramic capacitor, having at least two electrode layers and at least one substantially dense polycrystalline dielectric layer positioned therebetween. The at polycrystalline dielectric layer has an average grain size of less than about 300 nanometers, a particle size distribution of between about 150 nanometers and about 3 micrometers, and a maximum porosity of about 1 percent. The dielectric layer is selected from the group including TiO2, BaTiO3, Al2O3, ZrO2, lead zirconium titanate, and combinations thereof and has a breakdown strength of at least about 1100 kV per centimeter.

Abstract: A ceramic honeycomb structure having a large number of flow paths partitioned by porous cell walls, the cell walls comprising at least main crystals of aluminum titanate, in which MgO and SiO2 are dissolved to form a solid solution, and glass phases, the glass phases containing 40-80% by mass of SiO2 and 1-20% by mass of MgO, the average size of the glass phases being 30 ?m or less in a cross section of the cell walls, and the area ratio of the glass phases to the total area of the main crystals of aluminum titanate and the glass phases being 2-12% in a cross section of the cell walls, and its production method.

Abstract: Sintered bodies containing zirconia-based ceramic materials and partially sintered bodies that are intermediates in the preparation of the sintered bodies are described. The zirconia-based ceramic material is doped with lanthanum and yttrium. The grain size of the zirconia-based ceramic material can be controlled by the addition of lanthanum. The crystalline phase of the zirconia-based ceramic material can be influenced by the addition of yttrium.

Abstract: Provided is a mono- or multilayer ceramic substrate which exhibits a high flexural strength. The substrate contains a sintered ceramic which includes respective crystal phases of quartz, alumina, fresnoite, sanbornite, and celsian, in which the relationship between the diffraction peak intensity A in the (201) plane of the fresnoite and the diffraction peak intensity B in the (110) plane of the quartz, measured by a powder X-ray diffractometry in the range of the diffraction peak angle 2?=10 to 40°, is A/B?2.5. The fresnoite crystal phase preferably has an average crystal grain size of 5 ?m or less. In firing to obtain this ceramic sintered body, the maximum temperature falls within the range of 980 to 1000° C.

Abstract: A precursor batch composition that can be used to make porous ceramic articles is provided. In addition to a cellulosic binder and an aqueous solvent, the batch composition includes a polysaccharide gum. The batch composition may optionally include a linear water soluble polymer having a molecular weight of at least one million Daltons.

Abstract: A thermal barrier coating includes a microstructure and a composition including: a ceramic based compound comprising gadolinia and zirconia. The coating includes a nano-structure having a porosity of at most 50% by volume of the coating.

Abstract: A process for the production of high-density zirconia-based ceramics having high fracture toughness and strength suitable for use as nonconductive weld/guide pins, engine components and wear resistant parts. The process consists of mixing zirconia (with formula ZrO2) yttria (Y2O3) and ceria (CeO2) in proper proportions to produce partially stabilized zirconia (PSZ) and then doping the PSZ with chromium oxide (Cr2O3) to enhance the mechanical strength of the resultant body. The resultant sintered body has fracture toughness in excess of 15 MPa.m1/2, Vicker's Hardness in excess of 8.5 GPa and flexural strength of 1150 MPa.

Abstract: Shape memory and pseudoelastic martensitic behavior is enabled by a structure in which there is provided a crystalline ceramic material that is capable of undergoing a reversible martensitic transformation and forming martensitic domains, during such martensitic transformation, that have an elongated domain length. The ceramic material is configured as a ceramic material structure including a structural feature that is smaller than the elongated domain length of the ceramic material.

Abstract: Provided are a glass powder represented as aLi2O-bK2O-cBaO-dB2O3-eSiO2wherein a+b+c+d+e=1, and 0.01?a?0.1, 0.01?b?0.1, 0.01?c?0.1, 0.05?d?0.3, and 0.3?e?0.7 are satisfied in terms of mol %, a method of manufacturing the same, and a multi-layered ceramic material using the same. Therefore, a nano glass powder having an average particle size of 100nm or less and uniform particle size distribution can be manufactured using liquid phase deposition, specifically, a sol-gel method. In addition, the glass powder can be used as sintering additives to decrease a sintering temperature by about 100° C. in comparison with conventional glass upon manufacture of a ceramic material such as MLCC and MLCI, which can be sintered at a low temperature, contributing to improvement of dielectric capacity and inductance capacity of the parts and increasing quality coefficient.

Abstract: A ceramic ferrule made of a complex Zircornium oxide base material which blends with a rare element, such as Yuttrium, Cerium, etc, is provided. The ceramic ferrule can increase the phase transition resistivity of the Zircornium oxide material. It has a precise construction, and the reliability of products is enhanced. A movable connector of field-assembled optical fiber which adapts the present ceramic ferrule not only achieves co-axial joint of the optical fibers better surface smoothness as compared with plastic ceramic ferrule, but also overcomes the problem of scratching easily incurred during connection between plastic materials. The present invention has characters of good aging resistance, low insertion lose on jointing of optical fibers, high return loss and good connection quality.