FORMATION OF BORON NITRIDE AND BORON CARBIDE BY PYROLYSIS OF CONDENSATION PRODUCTS OF BORIC ACID AND ETHANOLAMINES.

Hiroaki Wada, Kazuaki Nojima, Kazuyuki Kuroda, Chuzo Kato

研究成果: Article

5 引用 (Scopus)

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Boron nitride was from boric acid-diethanolamine or -triethanolamine condensation products by their pyrolysis in a nitrogen flow. The condensation products obtained from boric acid-diethanolamine system (molar ratio 1:1 and 2:3) were glassy solids and had a polymeric structure containing the B-O-C bond. Monomeric triethanolamine borate, which contained both B-O-C and coordinate B-N bonds, was formed from boric acid-triethanolamine system. Pyrolysis of these condensation products in N//2 flow at 1400 degree C yielded boron nitride. A small amount of B//4C was also formed, depending on the molar ratio or on the carbon content of the condensation products.

元の言語English
ページ(範囲)130-134
ページ数5
ジャーナルYogyo Kyokai Shi/Journal of the Ceramic Society of Japan
95
発行部数1
出版物ステータスPublished - 1987 1 1

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ASJC Scopus subject areas

  • Engineering(all)

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