Abstract
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.
| Original language | English |
|---|---|
| Pages (from-to) | 130-134 |
| Number of pages | 5 |
| Journal | Yogyo Kyokai Shi/Journal of the Ceramic Society of Japan |
| Volume | 95 |
| Issue number | 1 |
| Publication status | Published - 1987 Jan 1 |
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ASJC Scopus subject areas
- Engineering(all)
Cite this
Wada, H., Nojima, K., Kuroda, K., & Kato, C. (1987). FORMATION OF BORON NITRIDE AND BORON CARBIDE BY PYROLYSIS OF CONDENSATION PRODUCTS OF BORIC ACID AND ETHANOLAMINES. Yogyo Kyokai Shi/Journal of the Ceramic Society of Japan, 95(1), 130-134.