• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>Bulk metallic glasses >Crystallization of Supercooled Zr sub 41Ti sub 14CU sub 12Ni sub 10B sub 23 Melts During COntinuous heating and Cooling
【24h】

Crystallization of Supercooled Zr sub 41Ti sub 14CU sub 12Ni sub 10B sub 23 Melts During COntinuous heating and Cooling

机译：在连续加热和冷却期间过冷的Zr sub 41Ti sub 14CU sub 12Ni sub 10B sub 23的结晶熔化

获取原文
获取原文并翻译 | 示例
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The crystallization behavior of the bulk glass forming Zr sub 41Ti sub 14CU sub 12Ni sub 10Be sub 23 liquid was studied under different heating and cooling rates. Investigations were performed in high purity graphite crucibles since heterogeneous surface nucleation at the container walls does not effect the crystallization of the bulk sample. A rate of about 1 K/s is sufficient to circumvent crystallization of the melt while ocoling from the equilibrium melt. In contrast, upon heating a rate of more than 150 k/s is necessary to avoid crystallization of Zr sub 41Ti sub 14Cu sub 12Ni sub 10Be sub 23 samples. The difference betwee nthe critical heating and cooling rate is discussed within classical nulceation theory and diffusion limited crystal growth. The calculated difference of the critical heating and cooling rate can be explained by the fact that nuclei formed during cooling and heating are expose to diffeent growth rates.
机译：研究了在不同的加热和冷却速率下，形成大块玻璃的Zr sub 41Ti sub 14CU sub 12Ni sub 10Be sub 23液体的结晶行为。在高纯度石墨坩埚中进行了研究，因为容器壁上的异质表面成核不会影响大块样品的结晶。大约1 K / s的速率足以避免熔体结晶，同时从平衡熔体渗出。相反，在加热时需要大于150 k / s的速率以避免Zr sub 41Ti sub 14Cu sub 12Ni sub 10Be sub 23样品结晶。在经典成核理论和扩散限制晶体生长的范围内讨论了临界加热和冷却速率之间的差异。临界加热和冷却速率的计算差异可通过以下事实解释：在冷却和加热期间形成的核暴露于不同的生长速率。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号