I-glaze ye-İznik - Glazecalc

Mayelana ne-İznik

I-glaze ecwebile, ekhazimulayo yezitsha zase-İznik zamaOttoman, eyayigcotshwa phezu komzimba omhlophe we-quartz ne-frit naphezu kwe-slip eyayipendwe ngokuluhlaza kwesibhakabhaka kwe-cobalt, i-turquoise, okuluhlaza okotshani nokubomvu kwe-bole okuphakeme. Ukuhlaziywa kwezingcezu zezitsha kuyavumelana ukuthi kwakuyi-glaze yomthofu ne-alkali, ecebile nge-silica ne-soda, okwakuthi ikota kuya kuhafu wesisindo sayo kube yi-oxide yomthofu, kanye nenani elithile le-oxide yethini. Iboniswa lapha njengomlando: ukuhlaziywa kwayo, hhayi iresiphi yokuxuba.

Igama lendabuko: İznik çinisi
Kuphi: İznik (Nicaea), Isifundazwe saseBursa, eTurkey
Nini: Isikhathi samaOttoman, cishe ngo-1480–1600
Ukushisa: 950–1050 °C; i-oxidation
Izitsha ezinomzimba omhlophe zazishiswa cishe ku-950–1050 °C; i-glaze yayivuthwa ngaphansi kwacishe ku-1000 °C.

Umlando kuphela: le glaze yayenziwe ngomthofu (lead, Pb). Ukuhlaziywa kwayo kuboniswa njengomlando, hhayi njengeresiphi yokuxuba. Uhlobo olungezansi luyi-glaze ehlukile, engenamthofu.

Ukuhlaziywa komlando

Iphesenti ngesisindo, maphakathi namabanga anikezwa nguColomban nozakwabo (SiO2 45–47, Na2O 8–14, K2O ne-CaO cishe 1, PbO 25–30, SnO2 4–7). U-Okyar wathola u-30–40% we-oxide yomthofu no-2–12% we-oxide yethini, ikakhulukazi encibilikile, neqembu elilodwa elinocishe u-50% we-oxide yomthofu ngaphandle kwethini.

I-oxide	% yesisindo
SiO₂	46
Na₂O	11
K₂O	1
CaO	1
PbO	27.5
SnO₂	5.5

Uhlobo olungenamthofu

I-glaze ehlukile, engenamthofu, ngesitayela sase-İznik: ukuhlaziywa okungenhla, lapho isabelo somthofu kuma-flux sinikezwe i-soda, i-lime ne-boron, ye-cone 04–02 (cishe 1060–1120 °C) ku-oxidation, phezu komzimba omhlophe noma i-slip ecebile nge-quartz, no-6% we-oxide yethini. Kuyisibalo, hhayi ikhophi ye-glaze yakudala, futhi okubomvu kwe-bole akukwazi ukulingiswa.

Kubaliwe, akukashiswa ukuhlolwa. Shisa ama-test tile ngaphambi kokuthi uyisebenzise kunoma yisiphi isitsha, futhi uhlole indawo ethinta ukudla ukuthi ayiphumi yini izinsimbi (leaching).

Lapho uthenga khona okokwakha

Yizame

Vula uhlobo olungenamthofu Wonke ama-glaze adumile

Vula i-akhawunti yamahhala

Ukuphepha

I-glaze yomlando iqukethe u-25–50% we-oxide yomthofu. I-Glazecalc ibonisa ukuhlaziywa kwayo njengomlando kuphela futhi ayinikezi nanoma iyiphi impahla yomthofu noma iresiphi yayo. Ama-glaze omthofu angakhipha umthofu ungene ekudleni nasekuphuzweni, futhi izinhlanganisela zomthofu ongakacutshungulwa ziyitshefu uma uziphatha, uziphefumula noma uzishisa.

Imithombo

Colomban Ph. et al., "On site Raman analysis of Iznik pottery glazes and pigments", Journal of Raman Spectroscopy (preprint arXiv:cond-mat/0612375, 2006), section 3.6.Vula(kufundwe ngo-2026-11-04)
Okyar F., İznik keramiklerinin karakterizasyonu (The characterisation of İznik ceramics), PhD thesis, İstanbul Teknik Üniversitesi Fen Bilimleri Enstitüsü, 1995 (advisor E. Geçkinli); thesis record and abstract.Vula(kufundwe ngo-2026-11-04)
Tulun T., Döner G., Çalışır F., Çini N., Karatepe N., Meriçboyu A., Tekin A., Altun A., Arlı B., Arlı H., "An archaeometric study on ancient Iznik ceramics", Balıkesir Üniversitesi Fen Bilimleri Enstitüsü Dergisi 4(2), 2002, pp. 34–40.Vula(kufundwe ngo-2026-11-04)