Ubudahangarwa bw'ubushyuhe bwinshi ni ikimenyetso cy'amabara y'icyuma cya okiside mu ikoreshwa rya ceramic. Iyo akoreshejwe mu itanura ku bushyuhe buri hagati ya 1000°C na 1300°C, aya mabara agumana ubuziranenge bw'amabara yaryo, bitandukanye n'amabara menshi y'umwimerere abora cyangwa agashira mu bushyuhe bukabije. Uku kudahinduka kwemeza ko glaze na tile bya ceramic bigumana ibara ryabyo nyuma yo gushya, ikintu cy'ingenzi mu kugera ku musaruro uhoraho mu gukora ibikoresho byinshi no mu bikoresho by'ubugeni. Byaba bikoreshwa mu bikoresho by'icyuma bya okiside bibengerana cyangwa bitameze neza, plaze za oxide bya icyuma zitanga ibara ryizewe, bigatuma abakora ibikoresho bakora tile n'ibibumbano bifite amabara amwe.

Iterambere ry'amabara rihamye ni ikindi cyiza cy'ingenzi cy'amabara ya oxide y'icyuma mu byuma bya keramike. Akorana neza n'ibice bitandukanye bya glaze, harimo n'ibirimo silika, alumina, n'ibintu bihindura ibara, bigatuma habaho ibara rihoraho. Uku guteganya ni ingenzi mu gushariza amatafari, aho amatafari menshi agomba kuba ahuye neza kugira ngo habeho imiterere ihuye. Ababumbyi nabo baha agaciro uku guhagarara, kuko bibafasha kugerageza imiterere ya glaze mu gihe bakomeza kugenzura ibara rya nyuma ry'ibice byabo. Kuva ku ibara ritukura cyane n'umukara mwinshi kugeza ku muhondo ushyushye n'umukara w'ubutaka, amabara ya oxide y'icyuma atanga amabara atandukanye ahamye yongera ubwiza bw'ibicuruzwa bya keramike.

Amabara ya okiside y'icyuma akoreshwa mu buryo butandukanye mu irangi, akwiriye irangi ry'umukara n'ibara ry'umubiri. Muri glaze, ashobora gukora ingaruka zitandukanye, kuva ku mabara akomeye kugeza ku iherezo ry'amabara atandukanye cyangwa afite utudomo, bitewe n'ingano y'amabara n'uburyo irangi rikoreshwamo. Iyo yongewe ku mubiri wa ceramic ubwayo, atanga amabara amwe mu bikoresho byose, bigatuma hadakenerwa glaze mu buryo bumwe na bumwe bwo gushushanya. Ubu buryo bworoshye butuma abanyabugeni n'abakora ceramic bashobora gushakisha uburyo butandukanye bwo gushushanya, kuva ku gakondo kugeza ku bugezweho.

Kuba ibara ry’umukara w’icyuma rihuye n’ikirere gitandukanye cyo gutwika ni indi nyungu. Rikora neza haba mu bidukikije bigabanya umwuka n’ibigabanya umwuka, rigaha abahanga mu by’ibumba ubushobozi bwo gutwika. Uku guhinduka kw’ibara ni ingenzi cyane mu gutanga amabara yihariye, kuko ibara rimwe rishobora gutanga amabara atandukanye bitewe n’ikirere cy’itanura. Urugero, umukara w’icyuma utukura ushobora kugaragara neza mu muriro ugabanya umwuka, mu gihe urushaho kugira ijwi ryimbitse kandi ryiza mu bidukikije bigabanya umwuka.

Gukoresha neza ikiguzi nabyo bigira uruhare mu gukundwa kwa pigment ya oxide y'icyuma mu bibumbano. Ingufu zazo nyinshi zo gusiga irangi bivuze ko ingano nto zigira uruhare runini, bigabanya ikiguzi cy'ibikoresho. Byongeye kandi, kuramba kwabyo no kudahindagurika bigabanya imyanda, kuko ibice bike byangwa bitewe n'uko amabara adahuye. Ibi bituma biba amahitamo ahendutse haba mu gukora amatafari manini ndetse no mu ma studio mato mato.

Muri make, ibara rya oxide y'icyuma ni ryiza cyane mu gushushanya amabara ya ceramic no kuyashariza amatafari bitewe nuko adashobora gushyuha cyane, afite ibara rihoraho, ahora ahindagurika, kandi akaba ahendutse. Atuma habaho ibikoresho byiza, biramba kandi bifite umutekano, kuva ku matafari mato kugeza ku bikoresho by'ubukorikori, bihaza ibyifuzo by'abakora n'abaguzi.