|
|||||
|
|
Preparation and characterization of Co80Nb20-xBx amorphous metallic ribbons |
|
| Authors: | R S Castro S Prasad R M Gomes I C E S G Lima A G Souza T A A Melo S J G Lima |
| Institution: | 1. Centro de Educa??o Tecnológica Federal de Pernambuco, Recife, PE, Brazil E-mail 2. Departamento de Engenharia Química, CCT, Universidade Federal de Campina Grande, Campina Grande, PB, Brazil 3. Laboratório de Solidifica??o Rápida, CT-DTM, Universidade Federal da Paraíba, Campus I, Cidade Universitária, 58059-900, Jo?o Pessoa, Paraíba, Brazil 4. LTM, Departamento de Química, CCEN, Universidade Federal da Paraíba Campus I, 58059 - 900, Jo?o Pessoa, PB, Brazil |
| Abstract: | Co80Nb14B6, Co80Nb12B8 and Co80Nb10B10 amorphous alloys were obtained through the melt-spinning process. The ribbons structure was investigated by X-ray diffractometry and the crystallization process and the thermal stability were studied by means of differential thermal analysis and thermomechanical technique. It was observed that the crystallization temperature depends on the alloy composition and occurs in a temperature range between 420 and 730°C. The coercive field of all alloys was determined by magnetic susceptibility measurements, the values of which range from 2.78 to 5.95 A m-1. This revised version was published online in August 2006 with corrections to the Cover Date. |
| Keywords: | CoNbB amorphous alloys melt spinning and crystallization temperature |
| 本文献已被 SpringerLink 等数据库收录！ | |