- 03
- Mar
Izinto ezithinta ukuqhutshwa kwe-thermal (i-thermal conductivity) yezitini eziphikisayo
Izici ezithinta conductivity ezishisayo (conductivity ezishisayo) of izitini ezikhanyisayo
I-conductivity eshisayo yezitini eziphikisayo ayithinteki kuphela ukushisa, kodwa futhi ihlobene eduze nokwakheka kwamaminerali amakhemikhali kanye nesakhiwo senhlangano. Lapho izitini eziphikisayo zakhiwe ngamakristalu, izakhiwo zamakristalu zinethonya elibalulekile ekuziphatheni okushisayo. Njengoba sonke sazi, ukushintshwa okushisayo kwezinto ezingezona ezensimbi ngokuvamile kuphansi kakhulu kunokwezinsimbi. Lokhu kungenxa yokuthi izinto ezingaphili ezingezona ezensimbi, ngokungafani nezinsimbi ezinamabhondi ensimbi, zinama-electron amahhala ambalwa kakhulu. Kule nto, ukuqhutshwa kokushisa okubangelwa ama-electron amahhala kunomkhawulo ngokwedlulele, futhi kunqunywa ngokuyinhloko izinga lokuchezuka kokudlidliza kwe-lattice kusuka ku-resonance. Okukhulu ukuchezuka kusuka ku-resonance, kuncane ukuqhutshwa kwe-thermal. Izinga lokuchezuka kwe-lattice vibration likhuphuka ngokwanda komehluko ku-molar mass yezinto ezihlanganisiwe, ngakho-ke ukuqhutshwa kokushisa kwento eyisisekelo inkulu kakhulu (i-thermal conductivity ye-graphite inkulu).