Menene Cristalline Glazes?

Crystalline glazes su ne kwararru na musamman waɗanda ke nuna bayyane da bambanci na girma a cikin matrix na fitilar wuta. Ko da yake mafi yawan lu'u-lu'u ba haka ba ne, wasu zasu iya girma har zuwa hudu ko biyar inci a cikin matrix glaze.

• 01 na 05

  Kira a cikin Glazes

  Kullun da ba a sani ba sun zauna da yawa idan ba mafi yawa ba. Yawancin matuka masu launin furanni da kyamara sune sakamakon yawan ƙwayoyin murya ko lu'u-lu'u wadanda basu da ganuwa ga ido marar ido. Gilashin macro-crystalline, ko kuma fiye da aka sani kawai kamar yadda gilashin crystalline, suna da lu'ulu'u masu girma da yawa don ganin su.

  Gishiri a kan tukunyar da aka kora shi ne yawancin ruwa mai tsafta. Yayin da aka narke melze da kuma sanyaya a cikin kiln , gilashin kwayoyin sun haɗa tare da igiyoyin ƙira. Cikakku na faruwa idan gilashi yana da ruwa sosai don ba da izinin kwayoyin su motsawa da yawa kuma sun isa da isa sosai don ba da izinin kwayoyin sunadaran su shirya kansu a cikin kirtani mai kyau, ko lu'ulu'u.

• 02 na 05

  Ta yaya Kayan Gida masu ganuwa

  Macel-crystals da ke samuwa a cikin giraben crystalline sun kasance a kusa da wani ginshiƙan ƙaramin titanium titanium oxide ko zinc oxide crystal. A cikin yanayin da ya dace, zinc da silica oxide kwayoyin zasu fara farawa kansu zuwa ga crystal. Wadannan kwayoyin suna cikin shirye-shiryen musamman, wanda muke gani kamar lu'ulu'u ne.

  Don wannan ya faru, dole ne lokaci mai tsawo a yanayin zafi mafi girma don ba da lokaci don girma girma, kuma gilashi dole ne ya zama daidai irin nauyin sinadarai. Wadannan su ne asali na biyu na abubuwa guda uku da masu tukwane zasu magance yayin aiki tare da giraben crystalline.

• 03 na 05

  Shirin Jarrabawa

  Lu'ulu'u suna dogon lokaci don yayi girma. Domin wannan ya faru, dole ne a yi wanzuwa a lokacin da yake da tsawo. Gudun lokacin yin amfani da gilashin crystalline yakan buƙaci lokaci mai tsabta a ƙarshen karfin wutar lantarki, tare da raguwa .

  Kullum magana, lu'ulu'u fara farawa a matsayin siffar allurai-kamar siffar 2084 F (1140 C). Idan an yi amfani da zazzabi a kusan shekara ta 2012 F (1100 C), siffar nau'i-nau'i guda biyu zai sabawa. Rike yawan zazzabi tsakanin 1994 zuwa 1850 F (1090-1010 C) zai karfafa siffar da za a zagaye. Cikakken cikakkun nau'i suna ba da sakamako mai ban sha'awa.

• 04 na 05

  The Chemical Glaze Composition

  Gaba ɗaya, crystalline glazes ne kuma high-wuta glazes kuma yana bukatar in mun gwada da high percentages na tutiya, titanium, ko lithium. Lithium zai iya ƙarfafa crystal girma ko da a cikin ƙananan zafin jiki glazes.

  Cikakken crystalline su ne ƙananan fiye da al'ada a cikin abun ciki na alumina. Bugu da ƙari, yawan silica kyauta a cikin duka gilashi da jiki mai yumbu dole ne a kiyaye su zuwa mafi ƙaƙa. In ba haka ba, cristobalite na iya samar da, yin tukunya da yawa kuma yana iya zama mai saukin kamuwa da zafi.

  Saboda wadannan buƙatu, crystalline glazes ya kasance quite runny. Dole ne a yi amfani da kwari a kan bisque pedestal-saucer (duba hoto) don kama duk direbobi. Ƙunjin tukunya na iya buƙata ya zama ƙasa kuma ya goge bayan cire daga kiln.

• 05 na 05

  Glaze da Crystal Coloration

  Saboda tsarin kwayoyin halittar crystal, kawai wasu masu launi suna iya ƙaura zuwa cikin launi. Waɗannan su ne cobalt, nickel, jan ƙarfe, baƙin ƙarfe, da manganese. Duk da haka, saboda halaye na kwayoyin halitta, waɗannan masu launi ba su yi daidai ba.

  Cobalt shine mafi karfi; zai rinjaye janyo hankalin sauran launin kuma ya matsa cikin tsarin tsari kawai. Alal misali, idan cobalt da manganese sun kasance a halin yanzu, hadewar za su yi ƙaura zuwa cikin lu'ulu'u suna sanya su shuɗi, kuma manganese zai kasance a cikin matasan gira, yana sa shi rawaya. Idan harkar ba ta kasance ba, nickel yana daukan matakan gaba wajen komawa cikin cristal, sa'an nan kuma manganese, to, jan karfe. Copper, idan ta kanta, za su yi launi da haske da kyau sosai.