Preparation and Properties of Aluminum Phosphates and Phosphate-Bonded Bodies in the CaO-n Al2O34H3PO4(H2O) System

Kengo Yamazaki, Toshihiko Nakazawa, Masahiro Yoshimura, Shigeyuki Somiya, Yoshinobu Yamaguchi

研究成果: Article同行評審

摘要

Aluminum phosphates were synthesized by hydrothermal treatment of the CaO.n Al2Os in H8P04 solutions at 100°C or 200°C under a pressure of 10MPa. Their thermal change was examined, together with the strength of hardened bodies. Three types of A1P04.2H20 {i.e. Lucin-type variscite, Messbach-type variscite and Metavariscite) are produced as aluminum phosphate at 100°C and 3 types of A1PO4 (Berlinite, Tridymite form and Cristobalite form) at 200°C. Decomposition and transformation of variscites during heating were also studied in air by TG-DTA and X-ray diffractometry. The strength of hardened bodies increased with the decrease of their GaO/Al2O3 ratio and was enhanced up to 150 to 290MPa for the products in the system of CA6.

原文English
頁(從 - 到)1422-1428
頁數7
期刊Nippon Kagaku Kaishi
1981
發行號9
DOIs
出版狀態Published - 1981

All Science Journal Classification (ASJC) codes

  • 化學 (全部)
  • 化學工程 (全部)

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