Gonen

Above 1080C, half of the oxygen disassociates to produce MnO, a flux which immediately reacts with silica to produce violet colors in the absence of alumina, browns in its presence. https://digitalfire.com/oxide/mno how do I get this violet? should I just mix silica (Sio2) powder with mno?

hi all can i mix chromium oxide or Manganese Oxide in water to emphasize texture as i do with copper and iron oxide? should they be covered with transparent glaze?

I found this seller talks about the wonderful benefits of borax to ceramics glaze : Benefits of Borax: For glazes and enamels, boric oxide is unique in that it acts simultaneously as a glass former, as a flux, and as a viscosity stabilizer that prevents the glaze from running too much while it is being fired. Perhaps most important of all, boric oxide reduces the thermal expansion of the glaze so that it can be matched to the expansion of the underlying ceramic or metallic body. At the same time, it improves aqueous and chemical durability while adding to the brilliance of the glaze. https://www.ceramic-glazes.com/borax-sodium-tetraborate when people that use it say it has many problems in cone 6 ox glaze ..... and why the fact its water soluble makes it problematic for glaze ? wouldn't that suspends evenly and better in the glaze ? any experience or good recipe you do have ? for its really cheap and has boron and sodium thanks

i heard little vinegar can prevent that

thickening it , making it brushable like CMC would do ...... i will look to see what a " viscous type fibre " are to understand better - thank you

Strange question I KNOW , I was left with an expired health product of soluble fibers : "Wheat Dextrin" type. Can they be used for glaze certification for application like CMC is used? Or they may emit too much gases and might promote for pinholes in the glaze?

no , my question is if the metals by itself not in it oxide\carbonate form would produce the same color on oxidation firing as the oxide forms i use too ? because i think at high temperature and availability of oxygen\water it will do

no its just nickel metal "High purity, ultra-fine, conductive, metallic nickel powder for experimental research"

a question If I put grinded metals ( they sell them 4000 mesh on aliespress ) wouldn't they oxidize in the electric kiln to give the colorant of their oxidized form we usually use ? like cupper tin cobalt etc. ? https://www.aliexpress.com/item/1005004187537341.html?spm=a2g0o.productlist.main.63.7093524a6BeVdN&algo_pvid=fcd23e1e-2c1b-471d-81c1-0771c97beda4&algo_exp_id=fcd23e1e-2c1b-471d-81c1-0771c97beda4-31&pdp_ext_f={"sku_id"%3A"12000028321382122"}&pdp_npi=2%40dis!ILS!60.92!33.5!!!!!%402122443916723461698128843d072d!12000028321382122!sea&curPageLogUid=K3LV5OwAVTFg

Dose anyone has a table that shows the most common frits, their names and their compositions ? and some attributes would be good like melting point and prefered eutectics ?

all about slips as glazes on digital fire https://digitalfire.com/article/creating+a+non-glaze+ceramic+slip+or+engobe

id apply it to leather hard clay body - i think to spray the place with water before the application , so i think the slip can be plastic and shrink ok with the clay body so i think ill add some flux ( feldspar or earthenware clay) to make a better connection to the clay body and cover the differences in shrinkage and a little silica or frit to form a little glasslike looks i ask myself if i should add some sodium silicate to difluc the all thing ? what do you think ?

I want to cover a vase with combination of different clay slips (terracotta , black clay, porcelain , RIO clay slip , and cupper oxide clay slip ) on different spaces over the clay body - cone 6 ox I want a shiny met look like the one of terra sigillata what do you think I should add into the slips ? and in what proportions ? silica ? fieldfare or maybe a frit ? thanks

and if i paint with that on the bisque and than glaze with clear glaze do you think it will incorporate into the glaze or just will create bubbles ? I'm a very beginner as you can understand

what can one earn (or loose )bye using Portland cement in glaze ? dose anyone ever try ? as "Portland cement clinker is a hydraulic material which shall consist of at least two-thirds by mass of calcium silicates, (3 CaO·SiO2, and 2 CaO·SiO2), the remainder consisting of aluminium- and iron-containing clinker phases and other compounds. The ratio of CaO to SiO2 shall not be less than 2.0. The magnesium oxide content (MgO) shall not exceed 5.0% by mass." thanks