Shear induced phase transformations from graphite to nanocrystalline cubic,hexagonal,and orthorhombi

来源 :第26届国际高压科学技术大会、第8届亚洲高压科技学术会议暨第19届中国高压科学技术会议(The 26th Interna | 被引量 : 0次 | 上传用户:YouYiDian
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
  Under large plastic shear in rotational anvil cells,nano-crystalline hexagonal and cubic diamond were detected using in-situ x-ray diffraction(XRD)at record low pressure of 0.4 and 0.7 GPa,respectively.
其他文献
Pyroxenes,including Mg-rich orthopyroxene and Ca-rich clinopyroxene,are believed to be one of the most important minerals in the Earths upper mantle(account for~20%by volume)[1].
会议
It is well known that most of the transition metal elements were widely existed as a form of metallic oxide or metallic sulfide in the deep Earth crust.
会议
We have found the new natural minerals:Tuite,a -Ca3(PO4)2 polymorph;Xieite,a New high pressureCaTi2O4(CT)type Chromite(FeCr2O4) and new high pressure CaFe2O4(CF)type,in the Suizhoumeteorite(in Hubei P
会议
Pyridine are organic six-membered heterocyclic compound,resembling the well-known benzene structure(C6H6)by replacing one of the CH groups with a nitrogen atom.Energetic materials are almost nitrogen
会议
Several types of new diluted magnetic semiconductors(DMSs)with charge and spin decoupled were reported recently [1-8].Among these DMSs systems,(Ba,K)(Zn,Mn)2As2 was famous for its high Curie temperatu
会议
BiFeO3 is a multiferroic material with antiferromagnetic and ferroelectric transition temperatures well above the room temperature.The spin structure is a G-type one with a superimposed cycloidal modu
会议
Recently,TaSb2,which posses the extreme magnetoresistance(XMR)effect,provides a platform of topological materials for future experimental and theoretical investigations1-3.
会议
The viscosity of the Earths metallic liquid outer core has been called one of the most important,and least well determined,of all geophysical parameters.
会议
SiO2-related glass ceramics are interesting materials for exploring metastability of SiO2 microcrystals embedded in a glass matrix at ambient conditions [1,2].
会议
The physical and mechanical properties on phase stability,bulk modulus and compressibility of the transition-metal binary boride,WB,were investigated by in situ high-pressure x-ray diffraction at room
会议