Boron-doped diamond as a new heating element for internal-resistive heated diamond-anvil cell
作者： Haruka Ozawa , Shigehiko Tateno , Longjian Xie , Yoichi Nakajima , Naoya Sakamoto
DOI: 10.1080/08957959.2018.1441407
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摘要: ABSTRACTWe have developed an internal-resistive heated diamond-anvil cell (IHDAC) with a new resistance heater – boron-doped diamond (BDD) along optimized design of the assembly, including composite gasket. Our proposed technique is capable heating silicate/oxide material (1) long-term stability (>1 h at 2500 K) and (2) uniform radial temperature distribution (±35 K 2500 K across 40-µm area), which are clear advantages over conventional laser-heated internal-heated DACs. In addition, achieved in this study was greater than 3500 K, mostly covers possible geotherm entire lower mantle. situ X-ray diffraction (XRD) measurement ex chemical analyses confirmed that weak XRD intensity from BDD inertness (no boron diffusion into silicate samples). This newly IHDAC can be used to determine phase diagrams mantle materials high precision lower-mantle petro...
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