Mechanical strengths were evaluated by compression tests according
to ASTM standards C-365 using a standard testing machine (Lloyd
LR5K instrument) equipped with a 5 kN load cell. Five samples from
each group were tested to obtain average value of mechanical strength
and standard deviation. Fourier Transformation Infrared spectroscopy
was performed using ATR spectrometer (Attenuated Total Reflectance;
PerkinElmer)with diamond crystal as a probe. The thermal conductivity
was measured with a thermal conductivity analyzer (Mathis TCi,
SETARAM) utilizing the modified transient plane source technique.