...
首页> 外文期刊>Physica, B. Condensed Matter >Theoretical investigations of structural, electronic and thermal properties of Ti2AlX(X = C,N)
【24h】

Theoretical investigations of structural, electronic and thermal properties of Ti2AlX(X = C,N)

机译:Ti2AlX(X = C,N)的结构,电子和热学性质的理论研究

获取原文
获取原文并翻译 | 示例
           

摘要

We have carried out a first-principles total-energy calculations of the structural and the electronic properties for the series of H-phases compounds Ti2AlC and Ti2AlN. We have applied the full-potential linearized augmented plane waves (FP-LAPW) method based on the density functional theory (DFT) using the local-density approximation (LDA) and/or the generalized gradient approximation (GGA). The quasi-harmonic Debye model, using a set of total energy versus volume calculations obtained with the FP-LAPW method which is applied to study the thermal and vibrational effects. Temperature and pressure effects on the structural parameters, thermal expansions, heat capacities and Debye temperatures are determined from the non-equilibrium Gibbs functions.
机译:我们已经对一系列H相化合物Ti2AlC和Ti2AlN的结构和电子性质进行了第一性原理的总能计算。我们基于局部密度近似(LDA)和/或广义梯度近似(GGA),基于密度泛函理论(DFT)应用了全势线性化增强平面波(FP-LAPW)方法。准谐波德拜模型,使用通过FP-LAPW方法获得的一组总能量与体积的计算来研究热和振动效应。温度和压力对结构参数,热膨胀,热容量和德拜温度的影响由非平衡吉布斯函数确定。

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