On the crystallographic irreversibility of some phase transformation in boron nitride
β Scribed by Pilyankevich, A. N. ;Kurdyumov, A. V. ;Ostrovskaya, N. F.
- Publisher
- John Wiley and Sons
- Year
- 1989
- Tongue
- English
- Weight
- 364 KB
- Volume
- 116
- Category
- Article
- ISSN
- 0031-8965
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## Abstract A review of the works, in which the Eβphase of boron nitride had been obtained under various physical treatments, revealed that in all cases during the formation or isolation of the Eβphase the sample can be impurified with oxygen. An Xβray spectral study of crystalline Eβphase obtained
In order to clarify the discrepancy of the phase diagram on boron nitride as it is found in the literature we have made numerous in situ di4raction experiments using synchrotron radiation. The conditions were temperatures in the range of 16003C and pressures up to 6.5 GPa. For the experiments diamon