Refractory metal matrix-ceramic compound multi-component composite material with super-high melting point

Patent metadata

Field	Value
Publication number	US-2018290934-A1
Application number	US-201815968972-A
Country	US
Kind code	A1
Filing date	May 2, 2018
Priority date	Jun 21, 2013
Publication date	Oct 11, 2018
Grant date	—

Abstract

A refractory metal matrix-ceramic compound multi-component composite material with the super-high melting point is disclosed. At least one ceramic compound A and at least one refractory bonding metal B are fused together by the smelting process to make the multi-component composite material. The fused ingredients of the multi-component composite material are mAnB, and 2≤(m+n)≤13. The positive integer m is the number of the kinds of the ceramic components A, and the positive integer n is the number of the kinds of the refractory bonding metals B. The absolute value of the combining enthalpy of the ceramic compound A is larger than the absolute value of the combining enthalpy between the ceramic compound A and the refractory bonding metal B. The material has the properties including over 3000° C. melting point, high stability, hardness, ductility, and fusibility in high or low temperature, fast production, and low cost.

First claim

What is claimed is:

1 . A refractory metal-matrix ceramic compound multi-component composite material, in which at least one ceramic compound A and at least one refractory bonding metal B are fused together by a smelting process to make the multi-component composite material, wherein fused ingredients of the multi-component composite material are mAnB, 2≤(m+n)≤13, m is a number of the added ceramic compounds, n is a number of the added refractory bonding metal B, m and n are positive integers, and an absolute value of combining enthalpy of the elements in ceramic compound A is larger than an absolute value of combining enthalpy of the nonmetal element in ceramic compound A and the refractory bonding metal B; the ceramic compound A is selected from the group consisting of a carbide, a nitride, a boride, and a silicide; the carbide is selected from the group consisting of titanium carbide (TiC), tantalum carbide (TaC), hafnium carbide (HfC), zirconium carbide (ZrC), niobium carbide (NbC) vanadium carbide (VC), chromium carbide (Cr 2 C 3 ), and molybdenum carbide (Mo 2 C); the nitride is selected from the group consisting of titanium nitride (TiN), zirconium nitride (ZrN), hafnium nitride (HfN), tantalum nitride (TaN), vanadium nitride (VN), and niobium nitride (NbN); the boride is selected from the group consisting of titanium boride (TiB 2 ), zirconium boride (ZrB 2 ), hafnium boride (HfB 2 ), tantalum boride (TaB 2 ), tungsten boride (WB), chromium boride (Cr 3 B 2 ), molybdenum boride (MoB 2 ), and tungsten boride (W 2 B); the silicide is selected from the group consisting of tantalum silicide (TaSi 2 ), titanium silicide (Ti 5 Si 3 ), zirconium silicide (Zr 6 Si 5 ), niobium silicide (NbSi 2 ), molybdenum silicide (MoSi 2 ), and tungsten silicide (WSi 2 ); and the refractory bonding metal is selected from the group consisting of tungsten (W), rhenium (Re), tantalum (Ta), niobium (Nb), and molybdenum (Mo).

2 . The refractory metal matrix-ceramic compound multi-component composite material according to claim 1 , wherein a maximum mixture proportion and a minimum mixture proportion of each of the main ingredients of the multi-component composite material are respectively 93 wt % and 7 wt %.

3 . The refractory metal-matrix ceramic compound multi-component composite material according to claim 1 , wherein the refractory bonding metal B is soluble with respect to the ceramic compound A.

4 . The refractory metal matrix-ceramic compound multi-component composite material according to claim 1 , wherein a plurality of minor elements are added into the fused ingredients of the multi-component composite material.

5 . The refractory metal matrix-ceramic compound multi-component composite material according to claim 1 , wherein the multi-component composite material is processed by a coating process.

6 . The refractory metal matrix-ceramic compound multi-component composite material according to claim 5 , wherein a material of the coating process is MCrAlY or CoCrAlY.

Assignees

• Univ Nat Tsing Hua

Inventors

• Chen Swe-Kai

Classifications

• C04B35/5626

  based on tungsten carbides · CPC title

• C22C29/08

  based on tungsten carbide · CPC title

• C04B2237/36

  Non-oxidic · CPC title

• C22C29/00

  Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides {(C22C26/00 takes precedence)} · CPC title

• C09D7/61

  inorganic · CPC title