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(Reference retrieved automatically from SciELO through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Development of a device for obtaining single crystals of copper-based alloys

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Author(s):
Matildes Blanco [1] ; Nilso Barelli [2] ; Assis Vicente Benedetti [3] ; Samuel Waldemar Andrade Flor [4]
Total Authors: 4
Affiliation:
[1] Universidade Estadual Paulista Julio Mesquita Filho. Instituto de Química. Departamento de Físico-Química
[2] Universidade Estadual Paulista Julio Mesquita Filho. Instituto de Química. Departamento de Físico-Química
[3] Universidade Estadual Paulista Julio Mesquita Filho. Instituto de Química. Departamento de Físico-Química
[4] Universidade de São Paulo. Escola de Engenharia de São Carlos. Departamento de Engenharia Elétrica
Total Affiliations: 4
Document type: Journal article
Source: Química Nova; v. 26, n. 5, p. 757-762, 2003-10-00.
Abstract

This paper describes the drawing, construction and optimization of a device, which can be used to obtain single crystals of different metallic materials with melting point from 550 to 1050 ºC. Components of ease obtaining and of low cost were used. The device was based on the modified Bridgman technique and it was used to obtain single crystals of copper-based alloys. The temperature axial profiles and a difference less then 1% in the temperature between the wall and the center of the ceramic tube in the critical region for obtaining single crystals of good quality indicated that the oven presents a good thermal stability. Single crystals of CuZnAl and CuAlAg alloys of good quality were growth and characterized using optical microscopy and Laüe X-ray back reflection. (AU)