Gabatarwa na asali na tef ɗin mica na roba

Mica na roba shine mica na wucin gadi tare da babban girman da cikakken sigar crystal wanda aka haɗa ƙarƙashin yanayin matsa lamba ta al’ada ta maye gurbin hydroxyl tare da ion fluoride. Ana yin tef ɗin mica na roba ta hanyar amfani da takarda mica da aka yi da mica na roba a matsayin babban abu, sannan a liƙa zanen gilashin a gefe ɗaya ko biyu tare da mannewa. Gilashin da aka liƙa a gefe ɗaya na takardar mica ana kiransa “tef mai gefe ɗaya”, kuma manna a bangarorin biyu ana kiransa “tef mai gefe biyu”. A cikin tsarin masana’antu, ana haɗa nau’ikan tsarin da yawa tare, sannan a bushe a cikin tanda, sannan a yi birgima, sannan a yanke su cikin ƙayyadaddun tef daban-daban.

Tef ɗin mica na roba yana da halaye na tef ɗin mica na halitta, wato: ƙaramin haɓaka haɓakawa, ƙarfin ƙarfin kuzari, babban juriya da daidaiton dielectric iri ɗaya. Babban fasalinsa shine matakin juriya mai zafi, wanda zai iya kaiwa matakin juriya na Class A (950-1000 ℃).

Juriya da zafin jiki na tef ɗin mica na roba ya fi 1000 ℃, kewayon kauri shine 0.08 ~ 0.15mm, kuma matsakaicin nisa na wadata shine 920mm.