• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>International journal of nanomechanics science and technology >GENERATION OF ARAGONITE NANOCRYSTALS IN A MAGNETIZED WATER FLOW
【24h】

GENERATION OF ARAGONITE NANOCRYSTALS IN A MAGNETIZED WATER FLOW

机译：磁化水流中生成文石纳米晶

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

It is known that polymorphism of calcium carbonate CaCO3 admits the formation of crystals in three different phases: vaterite, aragonite, and calcite. This work gives explanation of one of the effects noted on magnetization of water flow, i.e., the prevailing composition of a suspension in the form of aragonite nanocrystals. According to the model proposed earlier on the basis of the nanomechanics approaches, a magnetic field accelerates coagulation of nanosized critical nuclei in a supersaturated water flow. Moreover, this process is accompanied by homogeneous generation of new nuclei to sustain their equilibrium concentration. It is shown that in an elementary cell of a crystal the energy of formation increases, whereas the probability of formation decreases in the following succession: vaterite, aragonite, and calcite. However, due to the metastability of the vaterite, the prevailing suspension on a solution turns to be consisting of aragonite crystals that have a smaller surface of the crystalline cell and a higher density than calcite. This supplements the earlier proposed model and explains the well-known experimental results.
机译：众所周知，碳酸钙CaCO3的多态性可以使晶体形成三个不同的阶段：球ate石，文石和方解石。这项工作解释了对水流磁化的一种影响，即文石纳米晶体形式的悬浮液的主要成分。根据先前基于纳米力学方法提出的模型，磁场会加速过饱和水流中纳米级临界核的凝结。而且，该过程伴随有新核的均质生成以维持其平衡浓度。结果表明，在晶体的基本晶胞中，形成能增加，而形成概率则依次减少：v石，文石和方解石。但是，由于球v石的亚稳性，溶液中的主要悬浮液由文石晶体组成，文石晶体的表面比方解石的晶体小，密度更高。这是对较早提出的模型的补充，并解释了众所周知的实验结果。

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