I-Thermal conductivity ye izitini ezikhanyisayo (i-thermal conductivity)

I-conductivity yokushisa (i-thermal conductivity) yezitini eziphikisayo, okungukuthi, ikhono layo lokudlulisa ukushisa, ngokuvamile liboniswa ngokwemibandela yokushisa okushisayo. I-Thermal conductivity ibhekisela enanini lokushisa elidlule endaweni yeyunithi ngesikhathi seyunithi kanye nemitha yezinga lokushisa kweyunithi ngesikhathi sokudlulisa amandla. I-conductivity eshisayo yezinto ezihlukahlukene ngokuvamile ihluke kakhulu. Emazingeni okushisa asekamelweni, ukushiswa okushisayo kwezitini ezihlukahlukene eziphikisayo kungasukela kumaphesenti ambalwa kuye kwamashumi amaningana (w/(m·℃)), futhi umehluko phakathi kwevelu eliphezulu nenani eliphansi cishe izikhathi eziyinkulungwane. Njengoba izinga lokushisa likhuphuka, umehluko we-thermal conductivity wezitini ezihlukahlukene ze-refractory uvame ukwehla, kodwa umehluko usemkhulu kakhulu. Isibonelo, ku-1000℃, ukuqhutshwa kwe-thermal ye-silica engasindi cishe ku-0.35W/(m·℃ kuphela); imikhiqizo ye-silicon carbide eyenziwe kabusha icishe ibe ngu-17.5W/(m·℃); igraphite ingaba phezulu njengo-35W/(m·℃) .