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Title: Rapid solid-state precursor route to crystalline boron nitride: Synthesis, characterization and modeling

Abstract

Chemical synthesis of refractory ceramics is an important issue in materials science. Here the authors report rapid solid-state route to crystalline boron nitride. The solids MBF{sub 4}(M = Li, Na, or K) are used as the boron source, while Li{sub 3}N and/or NaN{sub 3} are used as the nitrogen source, respectively. The reagents are mixed together and then ignited with a resistively-heated filament in a small stainless reactor. Depending on the precurors used, reactions can self-propagate and highly crystalline boron nitride is formed within seconds. The final products are characterized by XRD, SEM, and IR. The rapid propagation of the reactions and the nearly instantaneous formation of products are discussed based on a consideration of combustion mechanism and the chemical and physical involved.

Authors:
;  [1]
  1. Univ. of California, Los Angeles, CA (United States)
Publication Date:
OSTI Identifier:
140999
Report Number(s):
CONF-930304-
TRN: 93:003688-0669
Resource Type:
Conference
Resource Relation:
Conference: 205. American Chemical Society national meeting, Denver, CO (United States), 28 Mar - 2 Apr 1993; Other Information: PBD: 1993; Related Information: Is Part Of 205th ACS national meeting; PB: 1951 p.
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 40 CHEMISTRY; BORON NITRIDES; PRECURSOR; CHEMICAL PREPARATION; STRUCTURAL CHEMICAL ANALYSIS; CHEMICAL REACTIONS; ALKALI METAL COMPOUNDS; CRYSTALLIZATION; COMBUSTION KINETICS

Citation Formats

Rao, L., and Kaner, R.B. Rapid solid-state precursor route to crystalline boron nitride: Synthesis, characterization and modeling. United States: N. p., 1993. Web.
Rao, L., & Kaner, R.B. Rapid solid-state precursor route to crystalline boron nitride: Synthesis, characterization and modeling. United States.
Rao, L., and Kaner, R.B. Fri . "Rapid solid-state precursor route to crystalline boron nitride: Synthesis, characterization and modeling". United States.
@article{osti_140999,
title = {Rapid solid-state precursor route to crystalline boron nitride: Synthesis, characterization and modeling},
author = {Rao, L. and Kaner, R.B.},
abstractNote = {Chemical synthesis of refractory ceramics is an important issue in materials science. Here the authors report rapid solid-state route to crystalline boron nitride. The solids MBF{sub 4}(M = Li, Na, or K) are used as the boron source, while Li{sub 3}N and/or NaN{sub 3} are used as the nitrogen source, respectively. The reagents are mixed together and then ignited with a resistively-heated filament in a small stainless reactor. Depending on the precurors used, reactions can self-propagate and highly crystalline boron nitride is formed within seconds. The final products are characterized by XRD, SEM, and IR. The rapid propagation of the reactions and the nearly instantaneous formation of products are discussed based on a consideration of combustion mechanism and the chemical and physical involved.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1993},
month = {12}
}

Conference:
Other availability
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