Process for preparing transition metal nitrides and transition metal carbonitrides and their reaction intermediates

Patent · Tue May 24 00:00:00 EDT 1988

OSTI ID:7127813

Maya, L

A process for making a precursor to ceramics is described comprising: placing a transition metal halide and an alkali metal borohydride in liquid ammonia solvent resulting in the formation of an insoluble transition metal haloamide and soluble by-products, alkali metal halide and ammonium borohydride; separating the insoluble transition metal haloamide from the solvent and the soluble by-products; reacting the transition metal halomide with a salt in liquid ammonia, the salt being one that will react by displacing the halogen atom of the transition metal haloamide and yield a precursor to ceramics.

• Assignee: Dept. of Energy, Washington, DC
• Patent Number(s): US 4746501
• OSTI ID: 7127813
• Resource Relation: Patent File Date: Filed date 6 Aug 1987
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
CERAMICS
CHEMICAL PREPARATION
NITRIDES
PRODUCTION
REACTION INTERMEDIATES
TRANSITION ELEMENT COMPOUNDS
AMIDES
AMMONIA
CHEMICAL REACTION YIELD
HALIDES
HALOGENS
HYDRIDES
ELEMENTS
HALOGEN COMPOUNDS
HYDROGEN COMPOUNDS
NITROGEN COMPOUNDS
NITROGEN HYDRIDES
NONMETALS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
PNICTIDES
SYNTHESIS
YIELDS
360201* - Ceramics
Cermets
& Refractories- Preparation & Fabrication
400201 - Chemical & Physicochemical Properties