Controlled-fracture forming for alumina wires and plates I. Cold-working and resintering characteristic

✍ Scribed by Xiang Ming Chen; Tatsuhiko Aizawa; Junji Kihara

• Book ID: 103951893
• Publisher: Elsevier Science
• Year: 1992
• Tongue: English
• Weight: 859 KB
• Volume: 151
• Category: Article
• ISSN: 0921-5093
• DOI: 10.1016/0921-5093(92)90180-9

✦ Synopsis

A novel cold-working and annealing process, the controlled-fracture forming process, has been developed for ceramic wires and plates. Metal-sheathed alumina wires are fabricated from presintered billets by the present process. A high bulk density can be achieved in the cold-worked alumina wires, where multiple-packed units of particles and pores with high coordination numbers are gradually eliminated by fracturing and particle flow. Thus-cold-worked alumina wires indicate good resinterability: (1) lower ultimate densification temperature (1200 °C) and (2) nearly complete densification for a short time.