Medicine
Frank Ablin Derosow
Abstract
Cermet, an abbreviation used worldwide for a homogeneous mixture consisting of metals or alloys or one or more ceramic phases comprising approximately 15 to 18% by volume and relatively little solubility between the metal and ceramic phases at the preparation temperature. It is being used. A good definition ...
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Cermet, an abbreviation used worldwide for a homogeneous mixture consisting of metals or alloys or one or more ceramic phases comprising approximately 15 to 18% by volume and relatively little solubility between the metal and ceramic phases at the preparation temperature. It is being used. A good definition of the word ceramic can be found in "Ceramic index". Any unusual, non-metallic product that is exposed to high temperatures during manufacture or use. By way of example, but not exclusively, the ceramic is a metal oxide, braide, carbide, or combination or mixture of such materials; In which there are anions that play an important role in atomic structure and properties. With a specific source on cermet’s, this definition of a ceramic component can be expanded to include nitrides, carbonatites, and silicides. In a broad view, cermet’s are like a special type of hard and refractory materials in the general class of metal composites. This topic is well covered in scientific papers, especially in the spectrum of specific comparable fracture volumes and metallic components. Compared to composite layers, the combination of metal and non-metal in cermet’s occurs on a very small scale. The non-metallic phase is usually non-filamentous, but a number of fine non-coaxial grains are formed, which are well dispersed and attached to the metal matrix. If the metal or ceramic component is often in the form of filaments, the material should be considered as a composite material. The connection between the non-metallic phase and the metallic background creates important effects among cermet’s; This greatly affects the phase associations, solubility and wetting characteristics associated with ceramic and metal components.
Medicine
Frank Ablin Derosow
Abstract
A major improvement in the resistance to deformation in TiC cermet’s and at the same time as a reduction in brittleness is possible by changing the arrangement of the bonded alloy or the carbide phase or both. to give an example of an optimal adhesive composition is 22.5% nickel, 10% molybdenum, ...
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A major improvement in the resistance to deformation in TiC cermet’s and at the same time as a reduction in brittleness is possible by changing the arrangement of the bonded alloy or the carbide phase or both. to give an example of an optimal adhesive composition is 22.5% nickel, 10% molybdenum, and approximately 7% aluminum. Improvement of the compressive yield strength of the carbide phase is achieved by forming a solid solution of TiC with 10% by weight of Vc. The addition of approximately 10% by weight of TiM greatly increases the deformation resistance of cermet. It is believed that this increase is ultimately the result of two factors, the effect of re-purification of the grains and the hardening of the carbide phase in the solid solution. If the ratio of titanium nitride to titanium carbide increases, carbo-nitride undergoes changes in its structure, which under controlled conditions can greatly improve the strength and fracture toughness of cermet. In the early 1970s, it was discovered that in the ternary systems Ti-MO-C-N and Ti-W-C-N there is a miscible gap in complete solid solutions between MON, MOC, TiN, and TiC under controlled, single-phase process conditions. Homogeneous solid solution breaks spontaneously or immediately into two similar phases that have close network parameters, but have different chemical compositions.
