DOI: 10.1002/2015GL066577
论文题名: High-pressure, high-temperature equations of state using nanofabricated controlled-geometry Ni/SiO2/Ni double hot-plate samples
作者: Pigott J.S. ; Ditmer D.A. ; Fischer R.A. ; Reaman D.M. ; Hrubiak R. ; Meng Y. ; Davis R.J. ; Panero W.R.
刊名: Geophysical Research Letters
ISSN: 0094-8374
EISSN: 1944-8105
出版年: 2015
卷: 42, 期: 23 起始页码: 10239
结束页码: 10247
语种: 英语
英文关键词: diamond-anvil cell
; equation of state
; high pressure
; nanofabrication
; nickel
; stishovite
Scopus关键词: Experimental mineralogy
; High pressure engineering
; Nanotechnology
; Nickel
; Photolithography
; Physical vapor deposition
; Plasma etching
; X ray diffraction
; Diamond-anvil cell
; Equation of state
; High pressure
; In-situ synchrotrons
; Laser-heated diamond anvil cells
; Mechanical mixtures
; Spatial homogeneity
; Stishovite
; Equations of state
; chemical composition
; diamond anvil cell
; equation of state
; experimental mineralogy
; high pressure
; high temperature
; inner core
; mantle structure
; nickel
; stishovite
英文摘要: We have fabricated novel controlled-geometry samples for the laser-heated diamond-anvil cell (LHDAC) in which a transparent oxide layer (SiO2) is sandwiched between two laser-absorbing layers (Ni) in a single, cohesive sample. The samples were mass manufactured (>104 samples) using a combination of physical vapor deposition, photolithography, and wet and plasma etching. The double hot-plate arrangement of the samples, coupled with the chemical and spatial homogeneity of the laser-absorbing layers, addresses problems of spatial temperature heterogeneities encountered in previous studies where simple mechanical mixtures of transparent and opaque materials were used. Here we report thermal equations of state (EOS) for nickel to 100 GPa and 3000 K and stishovite to 50 GPa and 2400 K obtained using the LHDAC and in situ synchrotron X-ray microdiffraction. We discuss the inner core composition and the stagnation of subducted slabs in the mantle based on our refined thermal EOS. © 2015. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84953634830&doi=10.1002%2f2015GL066577&partnerID=40&md5=7493bf95a05906bc08b69553cb4ccd41
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/7990
Appears in Collections: 科学计划与规划 气候变化与战略
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作者单位: School of Earth Sciences, Ohio State University, Columbus, OH, United States
Recommended Citation:
Pigott J.S.,Ditmer D.A.,Fischer R.A.,et al. High-pressure, high-temperature equations of state using nanofabricated controlled-geometry Ni/SiO2/Ni double hot-plate samples[J]. Geophysical Research Letters,2015-01-01,42(23).