Computer simulation of the structural and physical properties of silicate crystals and melts at high temperatures and high pressures
高温高压下硅酸盐晶体和熔体的结构和物理性质的计算机模拟
基本信息
- 批准号:16540442
- 负责人:
- 金额:$ 2.37万
- 依托单位:
- 依托单位国家:日本
- 项目类别:Grant-in-Aid for Scientific Research (C)
- 财政年份:2004
- 资助国家:日本
- 起止时间:2004 至 2006
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
Crystals and melts in the Na_2O-CaO-MgO-Al_2O_3-SiO_2 (NCMAS) system are important components of the earth's crust and mantle. Both molecular dynamics (MD) and lattice dynamics (LD) methods are used to calculate the properties of crystals, while the MD technique is applied to simulate melts. The interionic potential is taken to be the sum of pairwise additive Coulomb, van der Waals attraction, and repulsive interactions. In addition, in order to take account of many-body forces in crystals and melts, the breathing shell model is developed for simulation, in which the repulsive radii of 0 ions are allowed to deform isotropically under the effects of other ions in the system concerned. The net charges of the ions are constrained to be 2q(Na)=q(Ca)=q(Mg)=2/3q(A1)=1/2q(Si)=-q(0) to apply the potential to both crystals and melts with any composition in the NCMAS system. Required energy parameters, including the oxygen charge, repulsive radii, van der Waals coefficients of ions, and the oxygen breathing parameters, were derived empirically to reproduce the observed temperature-pressure-volume (T-P-V) equations of state of a wide structural. variety of crystals in the NCMAS system, as well as the measured volumes of enstatite, wollastonite, diopside, albite, and anorthite melts at high temperatures. In spite of a wide variety of crystals and melts studied, the LD and MD simulations are quite successful in reproducing accurately the measured structural and physical properties of both crystals and melts in the NCMAS system.
Na_2 O-CaO-MgO-Al_2 O_3-SiO_2(NCMAS)系统中的晶体和熔体是地壳和地幔的重要组成部分。分子动力学(MD)和晶格动力学(LD)的方法被用来计算晶体的性质,而MD技术被应用于模拟熔体。电子势是两两相加的库仑、货车德瓦耳斯吸引和排斥相互作用的总和。此外,为了考虑晶体和熔体中的多体力,本文发展了呼吸壳层模型进行模拟,在该模型中,零离子的排斥半径在有关体系中其它离子的作用下发生各向同性变形。离子的净电荷被限制为2 q(Na)=q(Ca)=q(Mg)=2/3q(Al)=1/2 q(Si)=-q(0),以将电势施加到NCMAS系统中具有任何组成的晶体和熔体两者。所需的能量参数,包括氧电荷,排斥半径,离子的货车德瓦耳斯系数,和氧气呼吸参数,推导出经验再现观察到的温度-压力-体积(T-P-V)状态方程的宽结构。NCMAS系统中的各种晶体,以及顽火辉石,硅灰石,透辉石,钠长石和钙长石熔体在高温下的测量体积。尽管各种各样的晶体和熔体的研究,LD和MD模拟是相当成功的精确再现测量的结构和物理性质的晶体和熔体在NCMAS系统。
项目成果
期刊论文数量(36)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
The crystal data and stability of calcite III at high pressures based on single-crystal X-ray experiments.
基于单晶 X 射线实验的方解石 III 在高压下的晶体数据和稳定性。
- DOI:
- 发表时间:2005
- 期刊:
- 影响因子:0
- 作者:Hyun;S.;N.Ahagon H.Yoon;K.Hagiya et al.
- 通讯作者:K.Hagiya et al.
Equations of state of CaSiO3 perovskite: a molecular dynamics study
CaSiO3 钙钛矿的状态方程:分子动力学研究
- DOI:
- 发表时间:2006
- 期刊:
- 影响因子:0
- 作者:平野弘通;海保邦夫;K.Hagiya;K.Hagiya;Y.Zhang;M.E.Zolensky;M.Matsui;M.Matsui;M.Matsui;M.E.Zolensky;Y.Zhang
- 通讯作者:Y.Zhang
The temperature-pressure-volume equation of state of γ-Mg2SiO4
- DOI:10.2465/jmps.99.72
- 发表时间:2004-04
- 期刊:
- 影响因子:0.7
- 作者:M. Matsui;T. Katsura
- 通讯作者:M. Matsui;T. Katsura
Anisotropy of Akimotoite: a molecular dynamics study
秋元石的各向异性:分子动力学研究
- DOI:
- 发表时间:2005
- 期刊:
- 影响因子:0
- 作者:Y.Zhang;D.Zhao;M.Matsui
- 通讯作者:M.Matsui
Temperature dependence of the modulation wavelength in Co-akermanite
钴镁石中调制波长的温度依赖性
- DOI:
- 发表时间:2007
- 期刊:
- 影响因子:0
- 作者:平野弘通;海保邦夫;K.Hagiya
- 通讯作者:K.Hagiya
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MATSUI Masanori其他文献
Characterization of an HLA class I molecule with a point mutation that enhances the presentation of an exogenously loaded peptide but fails to present an endogenous peptide
具有点突变的 HLA I 类分子的表征,该点突变增强了外源负载肽的呈递,但无法呈递内源肽
- DOI:
- 发表时间:
2014 - 期刊:
- 影响因子:0
- 作者:
MATSUI Masanori;KAWANO Masaaki;MATSUSHITA Sho;AKATSUKA Toshitaka - 通讯作者:
AKATSUKA Toshitaka
Chimeric VP1 of Simian Virus 40 induces IL-12 production from DC, facilitating CTL induction! against an inserted CTL epitope within the VP1
猿猴病毒 40 的嵌合 VP1 诱导 DC 产生 IL-12,促进 CTL 诱导!
- DOI:
- 发表时间:
2012 - 期刊:
- 影响因子:0
- 作者:
KAWANO Masaaki;SUDA Tatsuya;MATSUSHITA Sho;AKATSUKA Toshitaka;HANDA Hiroshi;MATSUI Masanori - 通讯作者:
MATSUI Masanori
MATSUI Masanori的其他文献
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{{ truncateString('MATSUI Masanori', 18)}}的其他基金
Establishment of an innovative vaccine platform with self-adjuvant function
建立具有自我辅助功能的创新疫苗平台
- 批准号:
26460560 - 财政年份:2014
- 资助金额:
$ 2.37万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Study of the spin transition in ferropericlase based on X-ray diffraction experiments at ultra-high pressures and high temperatures
基于超高压高温X射线衍射实验的方镁石自旋跃迁研究
- 批准号:
24540520 - 财政年份:2012
- 资助金额:
$ 2.37万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Development of a novel vaccine carrier for the next-generation influenza universal vaccine
下一代流感通用疫苗新型疫苗载体的研制
- 批准号:
23590550 - 财政年份:2011
- 资助金额:
$ 2.37万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Establishment of the pressure scale at high temperature and its application to seismic discontinuities in the Earth's interior
高温压力标度的建立及其在地球内部地震不连续性中的应用
- 批准号:
19204054 - 财政年份:2007
- 资助金额:
$ 2.37万 - 项目类别:
Grant-in-Aid for Scientific Research (A)
Computer simulation of the densities and the seismic velocities of the mantle transition zone
地幔过渡带密度和地震速度的计算机模拟
- 批准号:
13640482 - 财政年份:2001
- 资助金额:
$ 2.37万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Development of the simulation system for predicting structural and physical properties of minerals
开发预测矿物结构和物理性质的模拟系统
- 批准号:
10554026 - 财政年份:1998
- 资助金额:
$ 2.37万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Computer Simulation of the Physical and Chemical Properties of the Seismic Discontinuities in the Mantle
地幔地震间断面物理和化学性质的计算机模拟
- 批准号:
10640469 - 财政年份:1998
- 资助金额:
$ 2.37万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
The Strucutures and physical properties of ultrahigh-pressure silicate phases at high temperatures and high pressures in the lower mantle
下地幔高温高压超高压硅酸盐相的结构和物理性质
- 批准号:
06452100 - 财政年份:1994
- 资助金额:
$ 2.37万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
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Electrical conductivity measurements of silicate melts at the Earth's mantle conditions
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Multicomponent diffusion in silicate melts using eigen-component approach
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