scholarly journals Growth of Cubic Boron Nitride Single Crystal under High Pressure using Temperature Gradient Method.

1998 ◽  
Vol 7 ◽  
pp. 980-982 ◽  
Author(s):  
T. Taniguchi ◽  
S. Yamaoka
Keyword(s):  
High Pressure ◽  
Temperature Gradient ◽  
Boron Nitride ◽  
Single Crystal ◽  
Gradient Method ◽  
Cubic Boron Nitride ◽  
Temperature Gradient Method

Heteroepitaxial Growth of Cubic Boron Nitride Single Crystal on Diamond Seed Under High Pressure

1997 ◽  
Vol 472 ◽  
Author(s):  
T. Taniguchi ◽  
S. Yamaoka
Keyword(s):  
High Pressure ◽  
Boron Nitride ◽  
Single Crystal ◽  
Cubic Boron Nitride ◽  
Diamond Surface ◽  
Initial Growth ◽  
Etch Pits ◽  
Step Growth ◽  
Growth Feature ◽  
Cbn Crystal

ABSTRACTSingle crystal cubic boron nitride(cBN) was heteroepitaxially grown on a seed crystal of diamond under static high pressure and high temperature of 5.5GPa and 1600–1700°C, respectively, for 10–100 hour. A temperature gradient method was employed for the crystal growth by using lithium boron nitride as a solvent. Initial growth feature of cBN crystal was found on the diamond seed surface after the growing time of 10 minutes. The nucleation sites of the crystals seem to be near the etch pits on the diamond surface which were introduced by the surface dissolution by the solvent for cBN growth. Two types of growth features, island and step growth were typically shown on the surface. It can be seen that grown crystal appearing as a (111) nitrogen face was exhibited with the step growth feature, while the (11n) face exhibited the island growth feature. Considering the growth process under constant P-T growing condition, growth rate of cBN crystal was significantly small as compared to that of diamond.

Synthesis and characterization of boron and nitrogen co-doped diamond crystals under high pressure and high temperature conditions

CrystEngComm ◽  
2017 ◽  
Vol 19 (31) ◽  
pp. 4571-4575 ◽  
Author(s):  
Meihua Hu ◽  
Ning Bi ◽  
Shangsheng Li ◽  
Taichao Su ◽  
Qiang Hu ◽  
...  
Keyword(s):  
High Pressure ◽  
High Temperature ◽  
Temperature Gradient ◽  
Gradient Method ◽  
Synthesis And Characterization ◽  
Temperature Conditions ◽  
Diamond Crystals ◽  
Temperature Gradient Method ◽  
Co Doped

In this study, diamond crystals co-doped with boron and nitrogen were synthesized via a temperature gradient method at 5.3–5.8 GPa and 1300–1550 °C by adding B and N dopants to a system of carbon and an Fe-based solvent catalyst.

Effect of Al on the Formation of Cubic Boron Nitride Using Ni3Al Solvent under High Pressure

2007 ◽  
Vol 46 (11) ◽  
pp. 7388-7391 ◽  
Author(s):  
Yoichi Kubota ◽  
Kosuke Kosuda ◽  
Takashi Taniguchi
Keyword(s):  
High Pressure ◽  
Boron Nitride ◽  
Cubic Boron Nitride
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