Abstract: A highly corrosion resistant amorphous iron-base alloy having the formula Fe.sub.a Cr.sub.b Al.sub.c P.sub.d (B,C).sub.e where, in a/o:a=100-(b+c+d+e)b=4 to 6c=7.5 to 13d=12 to 14e=1 to 8, and provided further thate+d=15 to 22, ande+d+c=27 to 35.The alloy has excellent corrosion resistance and is easy to pulverize, thus, making it ideal as a metallic pigment in paints, plasma spray coating powders, and as a filler for plastics.

Abstract: The invention provides a method and apparatus for cutting a magnetic core spirally wound from a ribbon of glassy metal. The core is mounted on a mandrel, and a portion of the core is appointed to be cut. A clamping mechanism applies to the outside peripheral surface of said portion, a compressive clamping force directed toward said surface and normal thereto. A positioning mechanism locates and fixes the core and mandrel onto an indexing mechanism. The indexing mechanism moves the core and mandrel to a preselected fixed position, and a cutting mechanism cuts the core.

Abstract: A fine amorphous metallurgical powder suitable for compacting and sintering into amorphous densified articles which consist essentially of a major portion by weight a transition metal or combination thereof and less than a minor amount of an additional component for enhancing the amorphous characteristics of densified articles produced by directing a stream of molten droplets at a repellent surface to produce the smooth surfaced and melt solidified particles having an average particle size of less than about ten micrometers.

Abstract: A composite material composed of a matrix and an amorphous material of a desired disposition state is produced by positioning a given shape of crystals of a type easily transformable to an amorphous state by irradiation with a particle ray on the surface and/or the interior of the matrix at a predetermined position, and irradiating the crystals by the particle ray under an irradiation condition of transforming the crystals preferentially to the amorphous state.

Abstract: Amorphous thin film with easy magnetization axis perpendicular to film surface for magneto-optical recording with low recording power and high S/N in reading signal is set forth. The medium is an alloy of heavy rare earth element and iron with substitution of some heavy rare earth elements by light rare earth element, and the preferable chemical formula of the thin film is (R.sub.z A.sub.1-z).sub.x Fe.sub.1-x, or [(R.sub.z A.sub.1-z).sub.y B.sub.1-y ].sub.x Fe.sub.1-x where R is a light rare earth element, A and B are heavy rare earth elements, and the atom ratios satisfy 0.15.ltoreq.x.ltoreq.0.35, 0.00<y<1.00, 0.00<z<1.00. Recording is effected by using Curie point, or magnetic compensation temperature, and reading of information is effected by using the Kerr effect.

Abstract: A perpendicular magnetic recording medium composed of a base material, a 1st magnetic thin layer formed on the base material, and a perpendicularly magnetizable 2nd magnetic thin layer formed on the 1st magnetic thin layer, wherein the 1st magnetic thin layer is composed of a Co-base ternary amorphous alloy containing small amounts of Hf and Ta.

Abstract: An extended surface area amorphous metallic article and process for preparation thereof, wherein a homogeneous amorphous metallic alloy is phase-separated to produce two interconnected, internally continuous, amorphous phases, and then one phase is removed. Preferably, the homogeneous metallic alloy has a composition associated with a eutectic between at least two solid solutions. Phase separation is accomplished by exposing the alloy to a temperature which is below the crystallization temperature and also below the phase separation temperature for that composition. Removal of one phase may be accomplished by leaching in a liquid solution, or by vaporization. The resulting article has an extended surface area of the amorphous phase that is not removed. A porous membrane having extended internal surface area may be prepared by continuing the removal process to the removal of one phase throughout the entire thickness of the article.

Abstract: The present invention is for a flat B containing amorphous powder based in Fe, Ni, Co or a combination thereof; a coating resulting from deposition of the powder; and a method for depositing the powder.The composition of the powder and the resulting coating consists essentially of the formulation: (Fe,Ni,Co).sub.bal Cr.sub.0-20 (Mn,Mo,W).sub.0-35 (B,Si,C).sub.5-25 (Al,Ti).sub.0-10 where the subscripts are in atomic percent and with the proviso that 4.ltoreq.B.ltoreq.15, and that the balance will exceed 50%.

Abstract: A method for treating cast amorphous metal strip material. The method comprises heating a cast amorphous metal strip to a temperature of approximately 250.degree. in a non-oxidizing atmosphere, thereafter removing the cast amorphous strip from that atmosphere, and applying a tensile force to the strip material to eliminate elastic buckling therefrom.

Abstract: The present invention relates to substantially amorphous or microcrystalline aluminium-base alloys.Such alloys are of the following chemical composition:Al.sub.a M.sub.b M'.sub.c X.sub.d Y.sub.ein which:50.ltoreq.a.ltoreq.95 atom %M representing one or more metals of the group Mn, Ni, Cu, Zr, Ti, V, Cr, Fe and Co with:0.ltoreq.b.ltoreq.40 atom %M' representing Mo and/or W with:0.ltoreq.c.ltoreq.15 atom %X representing one or more elements of the group Ca, Li, Mg, Ge, Si and Zn, with:0.ltoreq.d.ltoreq.20 atom %Y representing the inevitable production impurities such as O, N, C, H, He, Ga, etc . . . , the proportion of which does not exceed 3 atom %.The alloys according to the invention can be produced by means of known methods in the form of wires, strips, bands, sheets or powders in the amorphous or microcrystallized state, the grain size of which is less than 1000 nm, preferably 100 nm.

Abstract: Conventionally, silicon steel strips and ferrite cores have been used as the core of a choke coil. These strips and the like have not yet been replaced with amorphous alloy because in the known amorphous magnetic alloy the pre-magnetization characteristic, the amount of heat generated, and the secular change are poor.The present invention proposes a core of a choke coil which consists of a coiled thin strip of an amorphous alloy, and has at least one cut air gap, the coiled regions of the thin strip being bound to one another at at least in the neighborhood of said at least one cut air gap, and said amorphous magnetic alloy is essentially comprised of the following composition, Fe.sub.x Mn.sub.y (Si.sub.p B.sub.q P.sub.r C.sub.s).sub.z, wherein x+y+z is 100 atomic % based on all of the elements, y is from 0.001 to 10 atomic %, z is from 21 to 25.5 atomic %, p+q+r+s is atomic % 1, p is from 0.40 to 0.75, r is fro 0.0001 to 0.05, the ratio s/q is from 0.03 to 0.4, and z is z.ltoreq.50p+1, z.ltoreq.10p+19, z.

Abstract: Amorphous metal alloy compositions are synthesized by solid state incorporation/reduction reactions wherein a high-surface area support is brought in contact with a precursor metal-bearing compound in such a manner that the compound is incorporated into the support or caused to deposit metal onto the surface of the support. The composition obtained is an amorphous alloy composition or can be made so by heat treating at a temperature below the crystallization temperature of the amorphous metal alloy desired to be formed.

Abstract: A metallic glass alloy that is either iron-based or nickel-based or based on a mixture of iron and nickel, containing lesser amounts of elements selected from the group boron, silicon carbon and phosphorous to which is added an amount of a ductility enhancing element selected from the group cerium, lanthanum, praseodymium and neodymium sufficient to increase ductility of the metallic glass upon annealing.

Abstract: A metallic body, such as a metallic glass body, is manufactured from an amorphous alloy formed from at least two starting alloy partners. First, a preliminary product is produced having respective adjacent layer of the starting alloy partners. A non-crystalline intermediate product is then developed by a rapid diffusion reaction at a predetermined relatively low temperature. The intermediate product is then further processed to form the metallic body which may be amorphous or crystalline in structure. Large scale production of such metallic bodies with relatively large thicknesses is made possible. For this purpose, a starting product is formed by joining together a predetermined number of mutually adjacent individual parts of the respective starting alloy partners by means of a bundling or stacking technique.

Abstract: Nozzles are formed in a plate for an ink-jet printer by holding a metal foil tightly against the side of the plate from which the nozzle is to protrude, and then pressing and punching through the plate and the metal foil together, through an aperture of a pressing die into a cushion of a hard elastic material such as lead. The foil is made of an isotropic material which is harder than that of the nozzle plate, and is preferably an amorphous or microcrystalline metal.

Abstract: A process for making a boron alloy from a ferrous or non-ferrous melt by adding a boron compound to the melt and reducing the compound within the melt by a reductant, such as aluminum, silicon or carbon, such that the boron can alloy with the melt. A boron alloy containing from very little boron up to 15% boron by weight can be formed. At least 40% of the boron compound is reduced to boron.The alloy can also be employed to make an amorphous material by discharging the molten alloy onto a moving surface to form a strip. The moving surface is a chill body which can quench the strip at a rate of at least from 10.sup.4 .degree. C./sec, or higher to solidify the strip and form an amorphous boron alloy material.

Abstract: Cobalt rich amorphous metal alloys have a value of magnetostriction of about -6.times.10.sup.-6 to +4.times.10.sup.-6 and a saturation induction of about 0.1 to 1.0T. The alloys, especially suited for soft magnetic applications, have the formula (Co.sub.1-x T.sub.x).sub.100-b (B.sub.1-y Y.sub.y).sub.b, where T is at least one of Cr and V, Y is at least one of carbon and silicon, B is boron, x ranges from about 0.05 to 0.25, y ranges from about 0 to 0.75 and b ranges from about 14 to 28.

Abstract: A nonequilibrium state material, typically a rare-earth-transition metal, for reversible hydrogen storage. A rare earth-transition metal such as a rare earth cobalt alloy, like a samarium-cobalt or a lanthanum-nickel alloy, is provided in the amorphous or metastable crystalline state as a hydrogen absorbing material, particularly for use in a hydrogen storage and retrieval system, such as a fluidized bed or stacked plate hydrogen storage cell. The rare-earth-transition metal material is rapidly cooled from the liquid state to avoid the transition to a full crystalline state thereby obtaining an amorphous or quasi-stable crystalline state material which has the property of enhanced hydrogen storage capacity as well as being substantially immune to fracturing.

Abstract: An amorphous metal having a desired irregularity is formed by irradiating a metal with an electron beam having an energy large enough to damage the metal thereby introducing a lattice defect into the metal and controlling the concentration of the introduced lattice defect.

Abstract: Metastable amorphous or fine crystalline materials are formed by solid state reactions by diffusion of a metallic component into a solid compound or by diffusion of a gas into an intermetallic compound. The invention can be practiced on layers of metals deposited on an amorphous substrate or by intermixing powders with nucleating seed granules. All that is required is that the diffusion of the first component into the second component be much faster than the self-diffusion of the first component. The method is practiced at a temperature below the temperature at which the amorphous phase transforms into one or more crystalline phases and near or below the temperature at which the ratio of the rate of diffusion of the first component to the rate of self-diffusion is at least 10.sup.4. This anomalous diffusion criteria is found in many binary, tertiary and higher ordered systems of alloys and appears to be found in all alloy systems that form amorphous materials by rapid quenching.

Abstract: An amorphous alloy for a magnetic head has a composition which may be represented asCo.sub.100-T-X-Y-Z Re.sub.T Hf.sub.X B.sub.Y Si.sub.Z,where T, X, Y and Z satisfy the conditions of 0.2.ltoreq.T.ltoreq.1.5, 6.ltoreq.X.ltoreq.15, 3.ltoreq.Y.ltoreq.8 and 0.ltoreq.Z.ltoreq.0.01. Such an amorphous alloy has a high crystallization temperature, said temperature being higher than 500.degree. C., and does not lower the effective magnetic permeability, even if gradual cooling is performed after heat treatment. A magnetic head having a core consisting of such an amorphous alloy is not deteriorated in its magnetic properties, even if the head is made by glass bonding.

Abstract: A novel method is provided for producing metallic glass reinforced metal rix composites possessing good interfacial bonding between the metallic glass and the metal matrix without gross degradation of the metallic glass or metal matrix. A layer of metallic glass in suitable form, e.g. ribbon, wire or flake, is placed between layers, e.g. sheets, of metal matrix material, which exhibits superplastic flow at a temperature below the crystallization temperature of the metallic glass material. The resulting structure is compressed at a temperature below the crystallization temperature of the metallic glass and sufficient to produce extensive superplastic flow of the metal matrix material.

Abstract: An amorphous alloy for a magnetic head has a composition which may be represented asCo.sub.100- T- X- Y- Z Ni.sub.T Hf.sub.X B.sub.Y Si.sub.Z,where T, X, Y and Z satisfy the conditions of 0.75.ltoreq.T.ltoreq.14, 6.ltoreq.X.ltoreq.15, 3.ltoreq.Y.ltoreq.8, 0.ltoreq.Z.ltoreq.0.01, 3.ltoreq.Y+Z.ltoreq.13, and 11.ltoreq.X+Y+Z.ltoreq.25. Such an amorphous alloy has a high crystallization temperature, said temperature being higher than 500.degree. C., and does not lower the effective magnetic permeability, even if gradual cooling is performed after heat treatment. A magnetic head having a core consisting of such an amorphous alloy is not deteriorated in its magnetic properties, even if the head is made by glass bonding.

Abstract: A process for the generation of halogens from halide-containing solutions includes the step of conducting electrolysis of the solutions in an electrolytic cell having a platinum based amorphous metal alloy anode having the formulaPt.sub.p A.sub.a D.sub.dwhereA is Cr, Mo, W, Fe, Os, Cu, Ni, Ag, V, Au and mixtures thereof;D is B, Si, Al, Ge, P, As, Sb, Sn and mixtures thereof;p ranges from about 40 to 92;a ranges from about 0 to 40; andd ranges from about 8 to 60, with the proviso that p+a+d=100.Such amorphous metal alloy anodes are also based on the formulaPt.sub.p E.sub.e F.sub.fwhereE is Cr, Mo, W, Fe, Os, Ir, Cu, Ni, Rh, Pd, Ag, Ti, Ru, Nb, V, Ta, Au and mixtures thereof;F is B, Al, Ge, As, Sb, Sn and mixtures thereof;p ranges from about 40 to 92;e ranges from about 0 to 40; andf ranges from about 8 to 60, with the proviso that p+e+f=100.

Abstract: A soft magnetic material having a low coercive force and a high permeability without reduction in saturation magnetic flux density is composed of a Co-base Co-Hf-Ta amorphous alloy containing 1 to 5 atoms % Hf and 4 to 10 atoms % Ta. The amorphous alloy is prepared by sputtering, etc.

Abstract: A desired shape of amorphous region is formed at a predetermined position in a metal crystal by introducing the desired shape of lattice defect at the predetermined position in the metal crystal, and then irradiating the lattice defect with an electron beam to form the desired shape of amorphous region at the predetermined position in the metal crystal.

Abstract: Amorphous metal alloy shapes are synthesized by providing an intimate mixture of the components of the amorphous alloy, which mixture includes at least one ductile component. The mixture may be subjected to well-known forming techniques at a temperature below the crystallization temperature of the amorphous metal alloy to be formed. The ductile component of the mixture acts as a binder matrix to provide strength and uniform properties to the formed object.

Abstract: A plain bearing pair comprising a bearing surface in opposed mating engagement with a relatively moveable friction bearing surface wherein the material of at least one of the mating bearing surfaces is formed from an amorphous metal alloy having a predominant refractory metal component and a Vickers Hardness Number in excess of 1000.

Abstract: A nickel based high melting point, homogeneous, ductile brazing foil composition consists essentially of about 17 to 20 atom percent chromium, about 4 to 10 atom percent boron, about 10 to 16 atom percent silicon, the balance being nickel and incidental impurities. The composition is such that the total of nickel and chromium ranges from about 74 to 84 atom percent.

Abstract: An amorphous film formed of a transition element-silicon compound which has excellent electric and optical characteristics is disclosed. The compound is amorphous and has a Si content of 60-85 at. %.

Abstract: Amorphous metal alloy powders are synthesized by solid state decomposition reactions. At least one precursor compound is thermally decomposed at a temperature below the crystallization temperature of the amorphous metal alloy to be formed. The decomposition product comprises an intimate mixture of the elements of the alloy and, after heat-treating if necessary, exhibits amorphous characteristics.

Abstract: Amorphous metal alloy powders may be synthesized by solid state reactions. Precursor components that include the elements of the amorphous alloy are chemically reduced to yield an intimate mixture. The resultant intimate mixture, as obtained or after heat-treating, exhibits amorphous characteristics. These powders are suitable for forming solid amorphous shapes.

Abstract: This invention relates to the production of large shapes of metallic glass fabricated from ribbon. The inventive method contemplates placing the ribbon and consolidating the alloy under a pressure or at least 1000 psi at a temperature of between 70% and 90% of the crystallization temperature for a time sufficient to facilitate bonding of the ribbons.

Abstract: This invention relates to the production of large non-planar shapes of metallic glass fabricated from ribbon. The inventive method contemplates stacking the ribbon. The stacked ribbon is formed and held at temperatures of between 70 and 90% of the crystallization temperature for a time sufficient to facilitate permanent deformation of the stacked ribbons and to bond the ribbons.

Abstract: Low levels of carbon in nickel based brazing alloys containing controlled levels of iron and boron and optionally chromium and silicon yield lower melting points, improve the contact angle and yield harder brazed joints than similar alloys without carbon addition.

Abstract: A sliding member made with amorphous metallic material on the sliding surface. The sliding member has a small coefficient of friction with magnetic tape by constructing the member in this manner together with high hardness. Accordingly, it can prevent magnetic tape from adhering to the member and thus has excellent running characteristic.

Abstract: The production of improved photoresponsive amorphous alloys and devices, such as photovoltaic, photoreceptive devices and the like; having improved wavelength threshold characteristics is made possible by adding one or more band gap adjusting elements to the alloys and devices. The adjusting element or elements are added at least to the active photoresponsive regions of amorphous devices containing silicone and fluorine, and preferably hydrogen. One adjusting element is germanium which narrows the band gap from that of the materials without the adjusting element incorporated therein. Other adjusting elements can be used such as tin. The silicon and adjusting elements are concurrently combined and deposited as amorphous alloys by vapor deposition, sputtering or glow discharge decomposition. The addition of fluorine bonding and electronegativity to the alloy acts as a compensating or altering element to reduce the density of states in the energy gap thereof.

Abstract: A number of metal cores especially suitable for use in an electrical induction device such as a transformer are disclosed herein along with respective methods of making these cores. In accordance with each of these methods, the appropriate metal material is initially provided and thereafter formed into an unsolidified, preliminary shape. Thereafter, while the material is in its preliminary shape, it is densified, preferably by means of explosion bonding, whereby to improve its permeability and saturation field characteristics. In one embodiment, a metal material is initially provided as a continuous strip. In another embodiment, the metal material is initially provided as a number of plates and still in another, preferred embodiment, amorphous metal particulate material is utilized. In this latter embodiment, the orientation of the particulate material is controlled to further improve the permeability and saturation field characteristics of the ultimately formed core.

Abstract: Disclosed is a temperature sensitive amorphous magnetic alloy which shows a Curie point of not higher than 200.degree. C. and whose composition is represented by the formula:(M.sub.1-a Ni.sub.a).sub.100-z X.sub.zwhereinM=Co or Fe;X=at least one of P, B, C and Si;0.2.ltoreq.a.ltoreq.0.8 when M is Co, or 0.4.ltoreq.a.ltoreq.0.9 when M is Fe; and15.ltoreq.z.ltoreq.30.

Abstract: The present invention is for a flat B containing amorphous powder based in Fe, Ni, Co or a combination thereof; a coating resulting from deposition of the powder; and a method for depositing the powder.The composition of the powder and the resulting coating consists essentially of the formulation: (Fe,Ni,Co).sub.bal Cr.sub.0-20 (Mn,Mo,W).sub.0-35 (B,Si,C).sub.5-25 (Al,Ti).sub.0-10 where the subscripts are in atomic percent and with the proviso that 4.ltoreq.B.ltoreq.15, and that the balance will exceed 50%.

Abstract: A process for the production of a fine amorphous metallic wire is described, comprising melt-spinning an iron family element base alloy having an amorphous substance-forming ability to obtain a fine amorphous metallic wire, and passing the thus-formed fine amorphous metallic wire through a die so as to draw within an area reduction percentage range of from about 5 to about 90%. The thus-produced fine amorphous metallic wire of the iron family element base system is excellent in heat resistance, corrosion resistance, electromagnetic characteristics, and has excellent mechanical properties, such as breaking strength and a degree of drawing at break. Thus, it is very useful for various industrial materials such as electric and electronic parts, composite materials, and fibrous materials.

Abstract: Amorphous metal alloys of the iron-chromium and nickel-chromium type have excellent corrosion resistance and high temperature stability and are suitable for use as a protective coating on less corrosion resistant substrates. The alloys are stabilized in the amorphous state by one or more elements of titanium, zirconium, hafnium, niobium, tantalum, molybdenum, and tungsten. The alloy is preferably prepared by sputter deposition.

Abstract: A method for the implosive consolidation into a solid body of a mass of free particles, which mass consists, selectively, entirely of amorphous particles, or a mixture of amorphous and nonamorphous particles. During the consolidation act, pressure and temperature are controlled in a manner which assures that the consolidated amorphous particles in the solid body exhibit substantially the same amorphous characteristics as those displayed by the unconsolidated, free amorphous particles.

Abstract: A copper based low melting point metal alloy composition consists essentially of about 5 to 52 atom percent nickel, about 2 to 10 atom percent tin, about 10 to 15 atom percent phosphorus and the balance essentially copper and incidental impurities. The composition is such that the total of copper, nickel and tin ranges from about 85 to 90 atom percent.

Abstract: Cobalt rich amorphous metal alloys have a value of magnetostriction of about -6.times.10.sup.-6 to +4.times.10.sup.-6 and a saturation induction of about 0.1 to 1.0T. The alloys, especially suited for soft magnetic applications, have the formula (Co.sub.1-x T.sub.x).sub.100-b (B.sub.1-y Y.sub.y).sub.b, where T is at least one of Cr and V, Y is at least one of carbon and silicon, B is boron, x ranges from about 0.05 to 0.25, y ranges from about 0 to 0.75 and b ranges from about 14 to 28.

Abstract: Disclosed is a process for forming a new group of cobalt-based alloys containing 3-18% hafnium carbide (HfC), the HfC having a particle size finer than about three microns. The class of alloys exhibits excellent tensile strength characteristics at very low temperatures, exhibits very good time-temperature stability, and shows excellent oxidation characteristics even at temperatures above about 1000.degree. C. In addition, the alloy is attractive for use in the wrought state because of its ductility and low-temperature toughness characteristics.

Abstract: Metal parts are brazed by means of an amorphous filler metal foil. The brazing foil, useful for brazing stainless steels, has a composition consisting essentially of about 0-10 atom percent iron, about 0-20 atom percent chromium, about 3-5 atom percent molybdenum, about 5-35 atom percent cobalt, about 14-19 atom percent boron and the balance nickel and incidental impurities. The ductile foil permits fabrication of preforms of complex shapes which do not require binders and/or fluxes necessary for brazing powders presently used to braze stainless steels and nickel base alloys, and exhibits excellent braze-metal and high-temperature strengths.

Abstract: There is disclosed an amorphous alloy for a magnetic core material represented by the formula(Co.sub.1-x.sbsb.1.sub.-x.sbsb.2 Fe.sub.x.sbsb.1 M.sub.x.sbsb.2).sub.x.sbsb.3 B.sub.x.sbsb.4 Si.sub.100-x.sbsb.3.sub.-x.sbsb.4wherein M is at least one element selected from the group consisting of Ti, V, Cr, Mn, Ni, Zr, Nb, Mo, Ru, Hf, Ta, W and Re, and x.sub.1, x.sub.2, x.sub.3 and x.sub.4 are numbers which satisfy relations of 0.ltoreq.x.sub.1 .ltoreq.0.10, 0.ltoreq.x.sub.2 .ltoreq.0.10, 70.ltoreq.x.sub.3 .ltoreq.79 and 5.ltoreq.x.sub.4 .ltoreq.9, respectively.According to the present invention, it could be provided an amorphous alloy suitable for a magnetic core material of a magnetic amplifier in which its coercive force is as low as 0.4 oersted or less at a high frequency of 20 KHz or more, particularly even at 50 KHz, and its rectangular ratio is as much as 85% or more.

Abstract: New cobalt base alloys containing chromium and carbon are disclosed. The alloys are subjected to rapid solidification processing (RSP) technique which produces cooling rates between 10.sup.5 to 10.sup.7 .degree. C./sec. The as-quenched ribbon, powder etc. consists predominantly of amorphous phase. The amorphous phase is subjected to suitable heat treatments so as to produce a transformation to a microcrystalline alloy which includes carbides; this heat treated alloy exhibits superior mechanical properties for numerous industrial applications.

Abstract: A honeycomb core diaphragm is described, which contains a honeycomb core made from a thin plate of beryllium or beryllium alloy which is produced by a super-rapid cooling method. Since the thin plate of beryllium or its alloy has a high modulus of elasticity and low density and, furthermore, is easily moldable, it can be easily molded to produce a honeycomb core having a high modulus of elasticity and low density.