User avatar
Nov 17th, '12, 09:15
Posts: 505
Joined: Oct 6th, '11, 23:01
Location: Hong Kong, next China

Lvni and Mao Lvni firing temps

by needaTEAcher » Nov 17th, '12, 09:15

Anyone know how temp affects color for mao lvni and lvni, ie lighter or darker green or blue? Assuming a stable mix.

User avatar
Nov 17th, '12, 10:09
Posts: 1899
Joined: Mar 22nd, '08, 22:26
Location: Shanghai

Re: Lvni and Mao Lvni firing temps

by chrl42 » Nov 17th, '12, 10:09

Mo Lv-ni is duanni or benshan lvni + cobalt oxide.

I always thought darkness is due to a content of cobalt, not firing temp. but I don't know why either. Little I know is those duanni or ben lv require high temp (almost over 1180c) to avoid 'black dots' while using. I heard this kind of clay is not easy to fire.

User avatar
Nov 30th, '12, 00:18
Posts: 505
Joined: Oct 6th, '11, 23:01
Location: Hong Kong, next China

Re: Lvni and Mao Lvni firing temps

by needaTEAcher » Nov 30th, '12, 00:18

Anyone know what would happen if zini or hongni were mixed with cobalt?

User avatar
Nov 30th, '12, 01:46
Posts: 2086
Joined: Mar 15th, '06, 17:43
Contact: MarshalN

Re: Lvni and Mao Lvni firing temps

by MarshalN » Nov 30th, '12, 01:46

Usually it's benshan lvni, I believe.

I think it'll be hard to categorically say nobody's tried to use anything other than benshan lvni, but I'd think the colours would be messed up. That said, why don't you ask your yixing making friends instead? We're not potters here, most of us.

User avatar
Nov 30th, '12, 06:36
Posts: 505
Joined: Oct 6th, '11, 23:01
Location: Hong Kong, next China

Re: Lvni and Mao Lvni firing temps

by needaTEAcher » Nov 30th, '12, 06:36

They don't use any clays with chemicals, not to mention, I try to save my questions in Yixing for more important things. I would guess that the cobalt is added when the raw material is mixed up, so I'm assuming not by the potters. But regardless, my company's factory doesn't use any chemical additives for any clay. This is just me being curious.

But if you really want me to ask, MarshalN, I will.

User avatar
Nov 30th, '12, 09:26
Posts: 2086
Joined: Mar 15th, '06, 17:43
Contact: MarshalN

Re: Lvni and Mao Lvni firing temps

by MarshalN » Nov 30th, '12, 09:26

No, it's just that you're more likely to get real answers than what you'd get here.

+ Post Reply