Residual strain scanning of alumina-based ceramic composites by neutron diffraction

6th Meeting of the Spanish Neutron Scattering Association

Ruiz-Hervias, J.^1 ; Bruno, G.^2 ; Bueno, S.^3 ; Gurauskis, J.^3 ; Baudín, C.^3 ; Fan, K.Y.^1

Materials Science Department, Universidad Politécnica de Madrid, Spain^1

Corning Incorporated, Corning

NY

14831, United States^2

Instituto de Cerámica y Vidrio (CSIC), Madrid, Spain^3

关键词: Alumina-based ceramic composites;    Aluminium titanate;    Aluminum titanate;    Residual strains;    Sintering temperatures;    Tensile residual stress;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/549/1/012027/pdf
DOI  :  10.1088/1742-6596/549/1/012027

来源: IOP

【 摘 要 】

Residual strain profiles were measured by neutron diffraction in alumina-aluminum titanate ceramic composites sintered at two different temperatures, namely 1450 and 1550°C. The results show that irrespective of the direction and the sintering temperature, the obtained profiles are almost flat, with very similar results for both temperatures. In addition, the results demonstrate that the alumina is in compression whereas the aluminium titanate is subjected to tensile residual stresses.