Wetting improvement of carbon or silicon carbide by aluminium alloys based on a K2ZrF6 surface treatment: application to composite material casting

• Published in: Journal of materials science Vol. 24; no. 8; pp. 2697 - 2703
• Main Authors: ROCHER, J. P, QUENISSET, J. M, NASLAIN, R
• Format: Journal Article
• Language: English
• Published: Heidelberg Springer 01.08.1989
• Subjects: Applied sciences; Exact sciences and technology; Metals. Metallurgy; Powder metallurgy. Composite materials; Production techniques

A surface treatment with aqueous solutions of K2ZrF6 dramatically improved the wetting of carbon (or SiC)-base ceramics by liquid light alloys at low temperatures (i.e. within the 700 to 900 C range). The mechanism which is possibly responsible for this involves two steps: K2ZrF6 reacts with Al with...