%0 Journal Article %1 citeulike:6201882 %A Barsoum, M. W. %A Rawn, C. J. %A Raghy, T. El %A Procopio, A. T. %A Porter, W. D. %A Wang, H. %A Hubbard, C. R. %D 2000 %I AIP %J Journal of Applied Physics %K 82d35-metals 80a20-heat-and-mass-transfer 80a10-classical-thermodynamics-including-relativistic 82d25-crystals %N 12 %P 8407--8414 %R 10.1063/1.373555 %T Thermal properties of Ti4AlN3 %U http://swiki/display/lib/Thermal+properties+of+Ti4AlN3 %V 87 %X In this article we report on the atomic displacement parameters, lattice expansions, heat capacity, and thermal conductivity of samples of Ti4AlN3 in the 298–1370 K temperature range. Rietveld refinement of high temperature neutron diffraction data shows that the nitrogen is substoichiometric and the formula is Ti4AlN2.9. In this structure, the atomic displacement parameters of the Al atoms are higher than those of either the Ti or N atoms. The Ti–N bonds adjacent to the Al planes are about 2.5\% shorter than the Ti–N bonds in the inner layers. The thermal expansion coefficients along the a and c axes are, respectively, (9.6±0.1)×10–6 and (8.8±0.1)×10–6 K–1. The unit cell expansivity, (9.4±0.1)×10–6 K–1, is in agreement with the dilatometric bulk thermal expansivity (9.7±0.2)×10–6 K–1. The heat capacity, cp, is 150 J/mol K at ambient temperatures and extrapolates to approximate220 J/mol K at 1300 K. At all temperatures cp equals four times the molar heat capacity of TiN. The room temperature thermal conductivity is 12 W/m K and increases linearly to approximate20 W/m K at 1300 K.

@article{citeulike:6201882, abstract = {{In this article we report on the atomic displacement parameters, lattice expansions, heat capacity, and thermal conductivity of samples of Ti4AlN3 in the 298–1370 K temperature range. Rietveld refinement of high temperature neutron diffraction data shows that the nitrogen is substoichiometric and the formula is Ti4AlN2.9. In this structure, the atomic displacement parameters of the Al atoms are higher than those of either the Ti or N atoms. The Ti–N bonds adjacent to the Al planes are about 2.5\% shorter than the Ti–N bonds in the inner layers. The thermal expansion coefficients along the a and c axes are, respectively, (9.6±0.1)×10–6 and (8.8±0.1)×10–6 K–1. The unit cell expansivity, (9.4±0.1)×10–6 K–1, is in agreement with the dilatometric bulk thermal expansivity (9.7±0.2)×10–6 K–1. The heat capacity, cp, is 150 J/mol K at ambient temperatures and extrapolates to [approximate]220 J/mol K at 1300 K. At all temperatures cp equals four times the molar heat capacity of TiN. The room temperature thermal conductivity is 12 W/m K and increases linearly to [approximate]20 W/m K at 1300 K.}}, added-at = {2017-06-29T07:13:07.000+0200}, author = {Barsoum, M. W. and Rawn, C. J. and Raghy, T. El and Procopio, A. T. and Porter, W. D. and Wang, H. and Hubbard, C. R.}, biburl = {https://www.bibsonomy.org/bibtex/2adbcd1c3c416a33ab55123568a404df5/gdmcbain}, citeulike-article-id = {6201882}, citeulike-attachment-1 = {barsoum_00_thermal_33546.pdf; /pdf/user/gdmcbain/article/6201882/33546/barsoum_00_thermal_33546.pdf; b853f0988b00d6e7fccf1743b9e49fe23a106330}, citeulike-linkout-0 = {http://dx.doi.org/10.1063/1.373555}, citeulike-linkout-1 = {http://swiki/display/lib/Thermal+properties+of+Ti4AlN3}, citeulike-linkout-2 = {http://scitation.aip.org/getabs/servlet/GetabsServlet?prog=normal\&id=JAPIAU000087000012008407000001\&idtype=cvips\&gifs=yes}, citeulike-linkout-3 = {http://link.aip.org/link/?JAP/87/8407}, comment = {(private-note)cited by Swiki `Titanium Aluminium Nitride'}, doi = {10.1063/1.373555}, file = {barsoum_00_thermal_33546.pdf}, interhash = {acfb81f02254a6e666907ea422c284ac}, intrahash = {adbcd1c3c416a33ab55123568a404df5}, journal = {Journal of Applied Physics}, keywords = {82d35-metals 80a20-heat-and-mass-transfer 80a10-classical-thermodynamics-including-relativistic 82d25-crystals}, number = 12, pages = {8407--8414}, posted-at = {2009-11-24 06:12:04}, priority = {4}, publisher = {AIP}, timestamp = {2020-04-24T08:27:09.000+0200}, title = {{Thermal properties of Ti4AlN3}}, url = {http://swiki/display/lib/Thermal+properties+of+Ti4AlN3}, volume = 87, year = 2000 }