Microlaminate composites as thermal barrier coatingsThick multiple-layered Ni/NiCoCrAlY and Ti/CoCrAlY microlaminate composites are explored as thermal barrier coatings. The method of fabrication of these laminates and the measurement technique used to determine thermal diffusivity and thermal conductivity of these coatings are discussed. Results indicate that the thermal conductivity of the laminate composite perpendicular to the laminate plane decreases with increasing number of interfaces; the drop in thermal conductivity is likely to be associated with interfaces which act as a barrier to the transfer of heat across them; the variation in thermal conductivity with the number of interfaces is not linear.
Document ID
19890066890
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Radhakrishna, M. C. (California Univ. Los Angeles, CA, United States)
Doerr, H. J. (California Univ. Los Angeles, CA, United States)
Deshpandey, C. V. (California Univ. Los Angeles, CA, United States)
Bunshah, R. F. (California, University Los Angeles, United States)