Fracture of dense, textured Bi<sub>2</sub>Sr<sub>2</sub>CaCu<sub>2</sub>O<sub>x</sub>
K C Goretta; M E Loomans; L J Martin; J Joo; R B Poeppel; Nan Chen; K C Goretta; Mater. & Components Technol. Div., Argonne Nat. Lab., IL, USA; M E Loomans; Mater. & Components Technol. Div., Argonne Nat. Lab., IL, USA; L J Martin; Mater. & Components Technol. Div., Argonne Nat. Lab., IL, USA; J Joo; Mater. & Components Technol. Div., Argonne Nat. Lab., IL, USA; R B Poeppel; Mater. & Components Technol. Div., Argonne Nat. Lab., IL, USA; Nan Chen; Mater. & Components Technol. Div., Argonne Nat. Lab., IL, USA
Журнал:
Superconductor Science and Technology
Дата:
1993-04-01
Аннотация:
Dense, bulk Bi<sub>2</sub>Sr<sub>2</sub>CaCu<sub>2</sub>O<sub>x</sub> bars were fabricated by sinter forging. The bars exhibited strong textures in which the c axes of the platelike grains were preferentially aligned parallel to the pressing direction. Fracture strength was measured in four-point bending, and in compression at angles of 0, 45, and 90 degrees to the pressing direction. Maximum strength in tension gas 100 MPa and average strength was 84 MPa. Maximum strength in compression, which depended on orientation, was 180 MPa and maximum average strength was 120-135 MPa.
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