Experimental results on the high-pressure phase diagram of boron nitride

被引：4

作者：

Fukunaga, Osamu ^{[1
]}

Nakano, Satoshi ^{[2
]}

Taniguchi, Takashi ^{[2
]}

机构：

[1] Tokyo Inst Technol, Dept Inorgan Mat, 2-12-1 Ookayama, Meguro, Tokyo 1528550, Japan

[2] Natl Inst Mat Sci, 1-1 Namiki, Tsukuba, Ibaraki 3050044, Japan

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS | 2022年 / 61卷 / 12期

关键词：

boron nitride; high-pressure; high-temperature; phase diagram; phase boundary; AB-INITIO CALCULATION; HIGH-TEMPERATURE; CUBIC BN; GROWTH; NUCLEATION; BOUNDARY; DIAMOND; MG3N2;

D O I：

10.35848/1347-4065/ac9dd5

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We present the boron nitride (BN) phase diagram at 3-6 GPa and 1100 degrees C-2200 degrees C using a modified belt-type high-pressure apparatus. The cubic BN (cBN)-hexagonal BN (hBN) phase boundary was determined using the hBN-Mg3BN3 catalyst system as a starting material at 4-5.5 GPa. Additional experiments were conducted at 3-4 and 4-6 GPa using cBN powder or hBN-Ca3B2N4 catalyst as a starting material. In the hBN-catalyst system, the rate of cBN nucleation was reduced by the growth of metastable hBN crystals under the cBN-stable pressure-temperature conditions. The stable BN phases were identified from the samples reacted with a longer run duration. The phase boundary line between hBN and cBN was determined as the equation P (GPa) = T (degrees C)/400 + 0.3, which agreed with the boundary lines calculated by Gruber and Gruneis and by Nikaido et al.

引用

页数：5

共 30 条

[1] Theoretical study of boron nitride modifications at hydrostatic pressures [J].

Albe, K .

PHYSICAL REVIEW B, 1997, 55 (10) :6203-6210

[2] SYNTHESIS OF CUBIC BORON-NITRIDE USING MG AND PURE OR M'-DOPED LI3N, CA3N2 AND MG3N2 WITH M'=AL, B, SI, TI [J].

BOCQUILLON, G ;

LORIERSSUSSE, C ;

LORIERS, J .

JOURNAL OF MATERIALS SCIENCE, 1993, 28 (13) :3547-3556

[3] DIRECT TRANSFORMATION OF HEXAGONAL BORON NITRIDE TO DENSER FORMS [J].

BUNDY, FP ;

WENTORF, RH .

JOURNAL OF CHEMICAL PHYSICS, 1963, 38 (05) :1144-&

[4] Polymorphism of bulk boron nitride [J].

Cazorla, Claudio ;

Gould, Tim .

SCIENCE ADVANCES, 2019, 5 (01)

[5]

CORRIGAN FR, 1975, J CHEM PHYS, V63, P3812, DOI 10.1063/1.431874

[6] GROWTH OF CUBIC BORON-NITRIDE BY CHEMICAL-VAPOR-DEPOSITION AND HIGH-PRESSURE HIGH-TEMPERATURE SYNTHESIS [J].

DEMAZEAU, G .

[7]

DeVries R. C., 1972, Journal of Crystal Growth, V13-14, P88, DOI 10.1016/0022-0248(72)90068-1

[8] GROWTH PRESSURE-TEMPERATURE REGION OF CUBIC BN IN THE SYSTEM BN-MG [J].

ENDO, T ;

FUKUNAGA, O ;

IWATA, M .

JOURNAL OF MATERIALS SCIENCE, 1979, 14 (06) :1375-1380

[9] The equilibrium phase boundary between hexagonal and cubic boron nitride [J].

Fukunaga, O .

[10] Nucleation and growth of cubic boron nitride using a Ca-B-N solvent [J].

Fukunaga, O ;

Nakano, S ;

Taniguchi, T .

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