Boron-doped diamond heater and its application to large-volume, high-pressure, and high-temperature experiments

Anton Shatskiy, Daisuke Yamazaki, Guillaume Morard, Titus Cooray, Takuya Matsuzaki, Yuji Higo, Ken Ichi Funakoshi, Hitoshi Sumiya, Eiji Ito, Tomoo Katsura

    Research output: Contribution to journalArticlepeer-review

    29 Citations (Scopus)


    A temperature of 3500 °C was generated using a diamond resistance heater in a large-volume Kawai-type high-pressure apparatus. Re and LaCrO3 have conventionally been used for heaters in high-pressure studies but they cannot generate temperatures higher than 2900 °C and make in situ x-ray observations difficult due to their high x-ray absorption. Using a boron-doped diamond heater overcomes these problems and achieves stable temperature generation for pressure over 10 GPa. The heater starting material is a cold-compressed mixture of graphite with boron used to avoid the manufacturing difficulties due to the extreme hardness of diamond. The diamond heater was synthesized in situ from the boron-graphite mixture at temperature of 1600±100 °C and pressure of 20 GPa. By using the proposed technique, we have employed the diamond heater for high-temperature generation in a large-volume high-pressure apparatus. Achievement of temperatures above 3000 °C allows us to measure the melting points of the important constituents in earth's mantle (MgSiO3, SiO2, and Al2 O3) and core (Fe and Ni) at extremely high pressures.

    Original languageEnglish
    Article number023907
    JournalReview of Scientific Instruments
    Issue number2
    Publication statusPublished - 2009

    ASJC Scopus subject areas

    • Instrumentation


    Dive into the research topics of 'Boron-doped diamond heater and its application to large-volume, high-pressure, and high-temperature experiments'. Together they form a unique fingerprint.

    Cite this