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000322418 0247_ $$2doi$$a10.1016/0022-5088(86)90561-8
000322418 0247_ $$2ISSN$$a0022-5088
000322418 0247_ $$2ISSN$$a1878-2728
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000322418 037__ $$aPUBDB-2017-03149
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000322418 1001_ $$0P:(DE-HGF)0$$aStaun Olsen, J.$$b0
000322418 245__ $$aHigh-pressure structural studies of UC by x-ray diffraction and synchrotron radiation
000322418 260__ $$aAmsterdam [u.a.]$$bElsevier$$c1986
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000322418 520__ $$aHigh-pressure v-ray diffraction studies have been performed on UC powder for pressures up to 46 GPa using a diamond anvil cell and synchrotron radiation. The low-pressure phase is of NaCl type with the lattice constant a0 = 4.9606(5) Å at ambient pressure. The best values of the bulk modulus and its pressure gradient are B0= 160(4) GPa and B'0 = 3.6(5) respectively. A transformation to a new phase, UC II, has been found at about 27 GPa. The diffraction lines from the high-pressure phase can be indeved using a pseudo-body-centred orthorhombic unit cell, which is a distortion of the body-centred tetragonal unit cell of the f.c.c. lattice. The lattice constants at 33.6 GPa are a = 3.043(10) Å, b = 3.518(6) Å and c = 4.730(7) Å. The evperimental evuation of state has been compared with the results of theoretical calculations.
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000322418 7001_ $$0P:(DE-HGF)0$$aGerward, L.$$b1
000322418 7001_ $$0P:(DE-HGF)0$$aBenedict, U.$$b2
000322418 7001_ $$0P:(DE-HGF)0$$aItié, J.-P.$$b3
000322418 7001_ $$0P:(DE-HGF)0$$aRichter, K.$$b4
000322418 773__ $$0PERI:(DE-600)2198580-7$$a10.1016/0022-5088(86)90561-8$$gVol. 121, p. 445 - 453$$p445 - 453$$tJournal of the less common metals$$v121$$x0022-5088$$y1986
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