"2"^^ . . "Contribution to comparison of physical characteristics of directionally crystallised Ni Al based inter-metallic compound"@en . . "Malcharczikov\u00E1, Jitka" . "Contribution to comparison of physical characteristics of directionally crystallised Ni Al based inter-metallic compound"@en . . "Kursa, Miroslav" . "Contribution to comparison of physical characteristics of directionally crystallised Ni Al based inter-metallic compound" . . "2008-09-29+02:00"^^ . "978-80-248-1843-6" . . "Z(MSM6198910013)" . . "RIV/61989100:27360/08:00019548" . "Materials, Metalurgy and Interdisciplinary, Co-working" . "27360" . . "Ni-Al based inter-metallic compounds are very interesting from physical and metallurgical viewpoints. Possibility of their application in demanding environment, particularly at increased and high temperatures with influence of oxidising atmosphere is of great importance. Directional crystallisation offers a possibility of influencing structure and properties of the final product. Several samples with composition 23 and 24 at. % Al were prepared for experimental purposes, both in cast form and after directional crystallisation. Thermal expansion was measured by contact dilatometer and it was compared in dependence on the rate of directional crystallisation, on the initial method of material preparation and on the aluminium contents. The measurement was made with use of the contact dilatometer. Coefficient of thermal expansion was in the measurement interval from 20 to 1000\u00B0C lower in material with lower Al content. Investigated alloys have lower values of the coefficient of thermal expansion than the d" . . "RIV/61989100:27360/08:00019548!RIV10-MSM-27360___" . . . "Ni-Al based inter-metallic compounds are very interesting from physical and metallurgical viewpoints. Possibility of their application in demanding environment, particularly at increased and high temperatures with influence of oxidising atmosphere is of great importance. Directional crystallisation offers a possibility of influencing structure and properties of the final product. Several samples with composition 23 and 24 at. % Al were prepared for experimental purposes, both in cast form and after directional crystallisation. Thermal expansion was measured by contact dilatometer and it was compared in dependence on the rate of directional crystallisation, on the initial method of material preparation and on the aluminium contents. The measurement was made with use of the contact dilatometer. Coefficient of thermal expansion was in the measurement interval from 20 to 1000\u00B0C lower in material with lower Al content. Investigated alloys have lower values of the coefficient of thermal expansion than the d"@en . . . . "[093DD9B33D48]" . "Ostrava" . "Contribution to comparison of physical characteristics of directionally crystallised Ni Al based inter-metallic compound" . "Ostrava" . . "361196" . . . . "5"^^ . "Intermetallic compound; directional solidification; thermal expansion; contact dilatometer"@en . . "2"^^ . "Vysok\u00E1 \u0161kola b\u00E1\u0148sk\u00E1 - Technick\u00E1 univerzita Ostrava" .