INDENTATION-INDUCED MICROHARDNESS AND FRACTURE STUDIES ON (110) AND (001) PLANES OF FLUX-GROWN DYSPROSIUM ORTHOFERRITE SINGLE-CRYSTALS

被引:5
作者
BEIGH, S
KOTRU, PN
WANKLYN, BM
机构
[1] UNIV JAMMU,DEPT PHYS,JAMMU 180001,INDIA
[2] UNIV OXFORD,DEPT PHYS,CLARENDON LAB,OXFORD OX1 3PU,ENGLAND
关键词
MICROHARDNESS; FRACTURE TOUGHNESS; DYSPROSIUM ORTHOFERRITE;
D O I
10.1016/0254-0584(94)01465-S
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Results of indentation-induced microhardness and fracture studies on (110) and (001) planes of flux-grown DyFeO3 single crystals, using a Vickers hardness tester, in the applied toad range of 10 to 100 g, are presented. The hardness VHN is unaffected by variation in the indentation time, but is observed to be dependent on applied load. The hardness results and the indentation-induced cracking yields the values of the yield strength, fracture toughness and brittleness index for (110) and (001) planes of DyFeO3 crystals.
引用
收藏
页码:99 / 104
页数:6
相关论文
共 33 条
[11]  
CAHOON JR, 1971, METALL TRANS, V2, P1979
[12]  
DESLANDES Y, 1991, J MATER SCI, V26, P2769, DOI 10.1007/BF02387749
[13]  
DHAR PR, 1993, THESIS JAMMU U INDIA
[14]   LATTICE CONSTANTS OF ORTHOFERRITES [J].
EIBSCHUTZ, M .
ACTA CRYSTALLOGRAPHICA, 1965, 19 :337-+
[15]   CRYSTALLOGRAPHIC STUDIES OF PEROVSKITE-LIKE COMPOUNDS .1. RARE EARTH ORTHOFERRITES AND YFEO3, YCRO3, YALO3 [J].
GELLER, S ;
WOOD, EA .
ACTA CRYSTALLOGRAPHICA, 1956, 9 (06) :563-568
[16]  
Hays C., 1973, Metallography, V6, P275, DOI 10.1016/0026-0800(73)90053-0
[17]   LOAD AND DIRECTIONAL EFFECTS ON MICROHARDNESS AND ESTIMATION OF TOUGHNESS AND BRITTLENESS FOR FLUX-GROWN LABO3 CRYSTALS [J].
JAIN, A ;
RAZDAN, AK ;
KOTRU, PN ;
WANKLYN, BM .
JOURNAL OF MATERIALS SCIENCE, 1994, 29 (14) :3847-3856
[18]   ON THE MICROHARDNESS OF SOME ORGANIC MOLECULAR-SOLIDS [J].
JOSHI, MJ ;
SHAH, BS .
CRYSTAL RESEARCH AND TECHNOLOGY, 1984, 19 (08) :1107-1111
[19]  
Kick F., 1885, GESETZ PROPORTIONALE
[20]   MICROHARDNESS MEASUREMENTS ON SINGLE-CRYSTALS OF GEL-GROWN RARE-EARTH (ND) MOLYBDATE AND PARAMOLYBDATE [J].
KOTRU, PN ;
BHAT, S ;
RAINA, KK .
JOURNAL OF MATERIALS SCIENCE LETTERS, 1989, 8 (05) :587-589