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Crystallization and Hardness of Melt Spun Fe_(73)Si_(13)B_9Nb_4Cu_1 Alloy
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作者 J.I. Akhter M. Iqbal +4 位作者 M. Siddique M. Ahmad m.a. haq m.a. Shaikh Z.Q. Hu 《Journal of Materials Science & Technology》 SCIE EI CAS CSCD 2009年第1期48-52,共5页
An alloy having composition Fe73Si13B9Nb4Cu1 was synthesized by melt spinning to investigate the kinetics of crystallization. Techniques of differential scanning calorimetry (DSC), X-ray diffraction (XRD) and Moss... An alloy having composition Fe73Si13B9Nb4Cu1 was synthesized by melt spinning to investigate the kinetics of crystallization. Techniques of differential scanning calorimetry (DSC), X-ray diffraction (XRD) and Mossbauer spectroscopy were employed to characterize the phases produced due to annealing at various temperatures. High temperature DSC revealed two stage crystallization reactions. First stage, crystallization occurs at temperature around 514℃ with the production of α-Fe (bcc) and Fe3Si phases. In the second stage, Fe2B and α-Fe (Si,Nb) phases were produced. Mossbauer results revealed the formation of Fe3Si, Fe13Si3 and Fe7Si1 in the first stage and Fe3Si, Fe13Si3, Fe2B and α-Fe (Si,Nb) phases in the second stage of crystallization. An abrupt change in average internal magnetic field was observed at 500℃. The maximum hardness value was found for the sample heat-treated at 500℃. 展开更多
关键词 Amorphous alloy CRYSTALLIZATION Mossbauer spectroscopy HARDNESS
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Allelic Variation within Single Podded Gene Characterized by STMS Marker in Chickpea
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作者 H. Ali m.a. haq +3 位作者 N. Iqbal A. Hameed T.M. Shah B.M. Atta 《分子植物育种》 CAS CSCD 2007年第2期252-254,共3页
Chickpea (Cicer arietinum L.), is an important grain legume crop throughout the world especially in developing countries. However the average yield worldwide is considered to be lower than its potential yield (Singh e... Chickpea (Cicer arietinum L.), is an important grain legume crop throughout the world especially in developing countries. However the average yield worldwide is considered to be lower than its potential yield (Singh et al., 展开更多
关键词 鹰嘴豆 基因表达 等位基因 遗传学
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