Thermal conductivity of alumina depends on its grade (purity-related) and temperature. Typically  it ranges around 30-40 W/mK for high grade alumina. A good reference book regarding aluminium oxide (alumina) data is :

Morrell, r. 1985, Handbook of propertis of technical & engineering ceramics. Part 2. Data Reviews, Section I, High-alumina ceramics, London, Her Majesty's Stationery Office, 255p.

Thermal conductivity (lambda) can be expressed as a function of temperature T (in K) as follows:

lambda = 5.5 + 34.5 exp [-0.0033(T-273)] in W/mK, in the range 25-1300ºC

The typical value of thermal conductivity is 33 W/m K for CuO (see «Enhancements of thermal conductivities with Cu, CuO, and carbon nanotube nanofluids and application of MWNT/water nanofluid on a water chiller system», MinSheng Liu, Mark ChingCheng Lin and ChiChuan Wang, Nanoscale Research Letters Vol. 6 (2011) 297

DOI: 10.1186/1556-276X-6-297

I am not aware of any data for CuO as function of temperature.

Hope you find these information useful.

Kind regards.

Fernando Costa Oliveira

Lisboa, 4th October 2016

Pls find attached for Al2O3 and CuO    [W•m−1•K−1]

Thermal conductivity of alumina depends on its grade (purity-related) and temperature. Typically  it ranges around 30-40 W/mK for high grade alumina. A good reference book regarding aluminium oxide (alumina) data is :

Morrell, r. 1985, Handbook of propertis of technical & engineering ceramics. Part 2. Data Reviews, Section I, High-alumina ceramics, London, Her Majesty's Stationery Office, 255p.

Thermal conductivity (lambda) can be expressed as a function of temperature T (in K) as follows:

lambda = 5.5 + 34.5 exp [-0.0033(T-273)] in W/mK, in the range 25-1300ºC

The typical value of thermal conductivity is 33 W/m K for CuO (see «Enhancements of thermal conductivities with Cu, CuO, and carbon nanotube nanofluids and application of MWNT/water nanofluid on a water chiller system», MinSheng Liu, Mark ChingCheng Lin and ChiChuan Wang, Nanoscale Research Letters Vol. 6 (2011) 297

DOI: 10.1186/1556-276X-6-297

I am not aware of any data for CuO as function of temperature.

Hope you find these information useful.

Kind regards.

Fernando Costa Oliveira

Lisboa, 4th October 2016

The following link is useful to find out crystal structure , phase diagram and properties of materials. The references are also included. http://www.springermaterials.com/

I would say that a normal aluminium has a thermal conductivity of around 200 W/mK. But it depends also how you calculate your coefficients on a given experiment and what math. model you use. I assume you are going to use the classical Fourier's formulation. And also that you are going to do a f.e.m. calculation. 

Thank you Prof. Fernando for your elaborate answer. 

Prof. Fernando,

CuO has thermal conductivity between 69 to 76 W/mK according to few papers. And there are also papers which have assumed the thermal conductivity of CuO between 20 to 30 W/mK. Therefore, there is a confusion regarding thermal conductivity values of CuO.

Thank You

@ Fernando Almeida Costa Oliveira do you know the correlation between temperature and silicon dioxide similar to that of alumina? thanks for the above comment

The thermal conductivity correlation might not give the accurate value. The porosity in the SiO2 and Al2O3 might affect its thermal conductivity. It is highly desirable to go with the experimental value.

According to published papers, the thermal conductivity (typical value) is 33 W/m K for CuO and 400 W/m K for Cu.