X-ray studies of krypton, xenon and lead inclusions in aluminium single crystals

✍ Scribed by L. Gråbæk; J. Bohr; E. Johnson; H.H. Andersen; A. Johansen; L. Sarholt-Kristensen

• Publisher: Elsevier Science
• Year: 1989
• Tongue: English
• Weight: 416 KB
• Volume: 115
• Category: Article
• ISSN: 0921-5093
• DOI: 10.1016/0921-5093(89)90663-1

✦ Synopsis

Samples of aluminium single crystals with [111] normal were implanted with either krypton, xenon or lead. The small inclusions formed as a result of the immiscibility of these elements and aluminium were then studied by X-ray diffraction at various temperatures. The analysis showed that the small noble gas inclusions (approximately 23 A) formed after implantation are solid up to at least 541 K. During the first heating cycle the inclusions grow and in a second heating cycle it is found that the largest of the inclusions (approximately 42 A) melt below 260 K. The lead inclusions grow during the first and second temperature cycles. Gradual melting was observed in a temperature interval from 621 to 660 K, which is" above 601 K, the melting temperature of bulk lead.