Hydrothermal metastability and structural disorder of 0.301 nm phase

✍ Scribed by B. Kurbus; V. Marinković

• Publisher: Elsevier Science
• Year: 1986
• Tongue: English
• Weight: 370 KB
• Volume: 16
• Category: Article
• ISSN: 0008-8846
• DOI: 10.1016/0008-8846(86)90047-5

✦ Synopsis

Several methods of characterization have been used in an attempt

to elucidate the nature of the 0.301 nm phase obtained during the hydrothermal synthesis of xonotlite from ~-Ca2SiO 4 and SiO 2.

Due to its metastability the 0.301 nm pnase could not be separated from the reaction product although numerous syntheses from the same ~-Ca~SiO, starting materials have shown complete reproducibilit~ o~ the formation ¢f 0.301 nm phase.

Experimental data obtained indicate that the structure of 0.301 nm phase is basically that of scawtite but somewhat disordered, and probably with some replacement of CO 3 by OH ions.