Project supported by the National Natural Science Foundation of China(Grant Nos.11504267,11504269,and 51172089);the Open Project of State Key Laboratory of Superhard Materials,Jilin University,China(Grant No.201504);the Doctoral Fund of Tianjin Normal University,China(Grant No.52XB1518)
In this study, we investigate the effect of nitrogen and hydrogen impurities on colors, morphologies, impurity structures and synthesis conditions of diamond crystals in Fe–C systems with C3N6H6 additives at pressure...
Project supported by the National Natural Science Foundation of China(Grant No.51172089);the Education Department of Henan Province,China(Grant No.12A430010);the Fundamental Research Funds for the Universities of Henan Province,China(Grant No.NSFRF140110)
Large diamonds have successfully been synthesized from FeNiMnCo-S-C system at temperatures of 1255-1393 ℃and pressures of 5.3-5.5 GPa.Because of the presence of sulfur additive,the morphology and color of the large d...
Project supported by the National Natural Science Foundation of China(Grant No.51172089);the Natural Science Foundation of Education Department of Guizhou Province,China(Grant Nos.KY[2013]183 and LH[2015]7232);the Research Fund for the Doctoral Program of Tongren University,China(Grant No.DS1302)
In this paper, the preparation of 0.08BiGaO3–0.90BaTiO3–0.02LiNbO3 is investigated at pressure 3.8 GPa and temperature 1100–1200?C. Experimental results indicate that not only is the sintered rate more effective, ...
supported by the National Natural Science Foundation of China(Grant No.51172089);the Program for New Century Excellent Talents in University,the Natural Science Foundation of Guizhou Provincial Education Department(Grant No.KY[2013]183);the Collaborative Fund of Science and Technology Office of Guizhou Province,China(Grant No.LH[2015]7232)
The effect of the catalyst height on the morphology of diamond crystal is investigated by means of temperature gradient growth (TGG) under high pressure and high temperature (HPHT) conditions with using a Ni-based...