Thermal expansion studies on the group IV–VII transition metal diborides☆ Export

@article{citeulike:4735212, abstract = {The thermal expansions of the group IV–VII transition metal diborides were studied with the aid of X-ray powder diffraction. The diborides were studied over the temperature range 298–1500 K. All the diborides except for CrB 2 display larger thermal expansion coefficients in the c direction than in the a direction. The expansion coefficients in the c direction decrease with increasing radius of the metal atom, a fact which can be correlated to an increase in metal-boron bond strength. The thermal expansion coefficient in the a direction changes very little with the size of the metal radius, owing to the fact that the bonding strength in the basal plane is determined by the strong B-B bonds within the boron layer. The mean thermal expansion coefficients of the diborides increase linearly with their reciprocal melting points.}, author = {Lonnberg, B.}, citeulike-article-id = {4735212}, citeulike-linkout-0 = {http://dx.doi.org/10.1016/0022-5088(88)90219-6}, citeulike-linkout-1 = {http://linkinghub.elsevier.com/retrieve/pii/0022508888902196}, doi = {10.1016/0022-5088(88)90219-6}, issn = {00225088}, journal = {Journal of the Less Common Metals}, keywords = {tib2}, month = {July}, number = {1}, pages = {145--156}, posted-at = {2009-06-03 17:34:42}, priority = {0}, title = {Thermal expansion studies on the group IV–VII transition metal diborides☆}, url = {http://dx.doi.org/10.1016/0022-5088(88)90219-6}, volume = {141}, year = {1988} }

TY - JOUR ID - citeulike:4735212 L3 - citeulike-article-id:4735212 N2 - The thermal expansions of the group IV–VII transition metal diborides were studied with the aid of X-ray powder diffraction. The diborides were studied over the temperature range 298–1500 K. All the diborides except for CrB 2 display larger thermal expansion coefficients in the c direction than in the a direction. The expansion coefficients in the c direction decrease with increasing radius of the metal atom, a fact which can be correlated to an increase in metal-boron bond strength. The thermal expansion coefficient in the a direction changes very little with the size of the metal radius, owing to the fact that the bonding strength in the basal plane is determined by the strong B-B bonds within the boron layer. The mean thermal expansion coefficients of the diborides increase linearly with their reciprocal melting points. IS - 1 JF - Journal of the Less Common Metals SN - 00225088 EP - 156 TI - Thermal expansion studies on the group IV–VII transition metal diborides☆ VL - 141 SP - 145 KW - tib2 AU - Lonnberg, B PY - 1988/07// UR - http://dx.doi.org/10.1016/0022-5088(88)90219-6 ER -