New models for the Earth's core: the neglected role of nickel - ab initio calculations and high P-T experiments on Fe-Ni alloys

地核的新模型：镍的被忽视的作用 - 从头计算和铁镍合金的高 P-T 实验

• 批准号: NE/H003975/1
• 负责人: Lidunka Vocadlo
• 金额: $ 84.75万
• 依托单位: University College London
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2010
• 资助国家: 英国
• 起止时间: 2010 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=NE%2FH003975%2F1
• 关键词: New; models; Earth; core; neglected

Determining the properties of the Earth's core is vital for understanding the evolution and dynamics of the whole planet. For over 80 years, the Earth's core has been considered to consist of an iron-nickel alloy; more recently it has been suggested that it must also contain a few percent of light alloying elements such as silicon or sulphur. The pressure range in the core is ~135

确定地核的特性对于了解整个地球的演化和动力学至关重要。 80 多年来，地核一直被认为是由铁镍合金组成；最近有人建议它还必须含有百分之几的轻合金元素，例如硅或硫。核心内的压力范围为~135

项目成果

The melting curve of Ni to 1 Mbar

• DOI: 10.1016/j.epsl.2014.09.046
• 发表时间: 2014-12
• 期刊: Earth and Planetary Science Letters
• 影响因子: 5.3
• 作者: Oliver Thomas Lord;I. Wood;D. Dobson;L. Vočadlo;Weiwei Wang;A. Thomson;E. T. Wann;G. Morard;M. Mezouar;M. Walter

The NiSi melting curve to 70GPa

NiSi熔化曲线至70GPa

• DOI: 10.1016/j.pepi.2014.05.005
• 发表时间: 2014
• 期刊: Physics of the Earth and Planetary Interiors
• 影响因子: 2.3
• 作者: Lord O

The phase diagram of NiSi under the conditions of small planetary interiors

• DOI: 10.1016/j.pepi.2016.10.005
• 发表时间: 2016-12-01
• 期刊: PHYSICS OF THE EARTH AND PLANETARY INTERIORS
• 影响因子: 2.3
• 作者: Dobson, David P.;Hunt, Simon A.;Mezouar, Mohamed
• 通讯作者: Mezouar, Mohamed

High-pressure phase transitions and equations of state in NiSi. II. Experimental results

• DOI: 10.1107/s0021889812016809
• 发表时间: 2012-08-01
• 期刊: JOURNAL OF APPLIED CRYSTALLOGRAPHY
• 影响因子: 6.1
• 作者: Lord, Oliver T.;Vocadlo, Lidunka;Walter, Michael J.
• 通讯作者: Walter, Michael J.

The elastic properties and stability of fcc-Fe and fcc-FeNi alloys at inner-core conditions

• DOI: 10.1093/gji/ggv128
• 发表时间: 2015-07
• 期刊: Geophysical Journal International
• 影响因子: 2.8
• 作者: B. Martorell;J. Brodholt;I. Wood;L. Vočadlo