Pressure-Induced Amorphization of Quasi Crystals
Pressure-Induced Amorphization of Quasi Crystals
复制标题
准晶体的压力诱导非晶化
DOI：
10.1143/jpsj.58.2231
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发表时间：
1989
影响因子：
1.7
通讯作者：
S. Takeuchi
中科院分区：
文献类型：
--
作者：
Y. Akahama;Y. Mori;Mototada Kobayashi;H. Kawamura;K. Kimura;S. Takeuchi
对Al6Li3Cu合金中的二十面体相进行了高压X射线衍射分析。二十面体相在压力下被各向同性压缩，然而，超过10 GPa，一个广泛的玻璃背景的发展，而衍射峰的强度从I相开始显着下降。这是第一次观察到的压力诱导的非晶化从I相。在28 GPa下，新的衍射峰从玻璃背景中产生。释放压力后，新的峰值消失，但玻璃背景在一个月后仍然存在。
X-ray diffraction analysis under high pressure was performed on the icosahedral phase of an Al 6 Li 3 Cu alloy. The icosahedral phase was isotropically compressed under pressure, Above 10 GPa, however, a broad glassy background developed, while the diffraction peaks from the I-phase began to decrease markedly in intensity. This is the first observation of pressure-induced amorphization from the I-phase. At 28 GPa, new diffraction peaks developed from the glassy background. On release of pressure, the new peaks disappeared but the glassy background still remained after a month.