Claims
- 1. A composition comprising:
- a transition metal bound to;
- a first ligand selected from the group inorganic amide and imide ligands; and
- a second ligand being acetylide ligands.
- 2. The composition of claim 1 wherein said acetylide ligand is terminal.
- 3. The composition of claim 1 wherein said acetylide ligand is bridging between said transition metal molecules.
- 4. The composition of claim 1 wherein said transition metal is selected from the group vanadium, tungsten, molybdenum, titanium and niobium.
- 5. The precursor of claim 1 having the formula M.sup.n (C.tbd.CH).sub.x (NH.sub.2).sub.n-x wherein M is a transition metal and n is the oxidation state of M and x is a variable.
- 6. A process for making ceramics comprising:
- pyrolyzing the precursor of claim 1 in an inert atmosphere.
- 7. A process for making ceramics comprising:
- pyrolyzing the precursor of claim 2 in an inert atmosphere.
- 8. A process for making ceramics comprising:
- pyrolyzing the precursor of claim 3 in an inert atmosphere.
- 9. A process for making ceramics comprising: pyrolyzing the precursor of claim 4 in an inert atmosphere.
Government Interests
This invention is a process for preparing ceramic nitrides and carbonitrides from ammonolytic intermediates that produce powder ceramic materials which are easy to use in manufacturing articles. The invention was developed pursuant to a contract with the United States Department of Energy.
US Referenced Citations (12)
Foreign Referenced Citations (2)
Number |
Date |
Country |
68700 |
Jun 1978 |
JPX |
151280 |
Aug 1985 |
JPX |
Non-Patent Literature Citations (3)
Entry |
Chemical Abstracts citation 84:46655e. |
Chemical Abstracts citation 84:11692n. |
Interrante et al., "Studies of Organometallic Precursors to Aluminum Nitride," Abstract of Materials Research Society Meeting; Apr. 1986, at Palo Alto, Calif. |