Xie Longjian, Chanyshev Artem, Ishii Takayuki, Bondar Dmitry, Nishida Keisuke, Chen Zhen, Bhat Shrikant, Farla Robert, Higo Yuji, Tange Yoshinori, Su Xiaowan, Yan BingMin, Ma Shuailin, Katsura Tomoo
Bayerisches Geoinstitut, University of Bayreuth, 95440 Bayreuth, Germany.
Center for High Pressure Science and Technology Advanced Research, Beijing 100094, China.
Rev Sci Instrum. 2021 Oct 1;92(10):103902. doi: 10.1063/5.0059279.
We attempted to generate ultrahigh pressure and temperature simultaneously using a multi-anvil apparatus by combining the technologies of ultrahigh-pressure generation using sintered diamond (SD) anvils, which can reach 120 GPa, and ultrahigh-temperature generation using a boron-doped diamond (BDD) heater, which can reach 4000 K. Along with this strategy, we successfully generated a temperature of 3300 K and a pressure of above 50 GPa simultaneously. Although the high hardness of BDD significantly prevents high-pressure generation at low temperatures, its high-temperature softening allows for effective pressure generation at temperatures above 1200 K. High temperature also enhances high-pressure generation because of the thermal pressure. We expect to generate even higher pressure in the future by combining SD anvils and a BDD heater with advanced multi-anvil technology.
我们试图通过结合使用烧结金刚石（SD）砧座产生超高压（可达120 GPa）和使用掺硼金刚石（BDD）加热器产生超高温（可达4000 K）的技术，利用多砧装置同时产生超高压和超高温。通过这种策略，我们成功地同时产生了3300 K的温度和高于50 GPa的压力。尽管BDD的高硬度在低温下显著阻碍了高压的产生，但其高温软化使得在1200 K以上的温度下能够有效地产生压力。由于热压力，高温也增强了高压的产生。我们期望通过将SD砧座和BDD加热器与先进的多砧技术相结合，在未来产生更高的压力。
