Production of flaky Cu-based amorphous powders by a two-stage quenching technique, and their chemical and optical properties

✍ Scribed by H. Yamaguchi; M. Oguchi; Y. Harakawa; A. Inoue; T. Masumoto

• Publisher: Elsevier Science
• Year: 1994
• Tongue: English
• Weight: 293 KB
• Volume: 181-182
• Category: Article
• ISSN: 0921-5093
• DOI: 10.1016/0921-5093(94)90869-9

✦ Synopsis

Amorphous Cu 71NilIP18 powders were produced by the two-stage quenching technique consisting of high pressure gas atomization and subsequent centrifugal spinning. These amorphous powders have a flaky morphology with a disk or ellipsoidal shape. They have small thicknesses of about 1-3/~m and large aspect ratios of about 10-350. The flaky powders produced by the two-stage quenching technique displayed excellent coating characteristics, which resulted from the unique powder morphology. The application of the Cu-based powders to colored and antifouling pigments is expected, exploiting the characteristics of Cu-based amorphous alloys.