Lvni and Mao Lvni firing temps


Discussion on virtually any teaware related item.

Lvni and Mao Lvni firing temps

Postby needaTEAcher » Nov 17th, '12, 10:15

Anyone know how temp affects color for mao lvni and lvni, ie lighter or darker green or blue? Assuming a stable mix.
User avatar
needaTEAcher
 
Posts: 505
Joined: Oct 6th, '1
Location: Hong Kong, next China

Re: Lvni and Mao Lvni firing temps

Postby chrl42 » Nov 17th, '12, 11:09

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
chrl42
 
Posts: 1652
Joined: Mar 22nd, '
Location: Beijing

Re: Lvni and Mao Lvni firing temps

Postby needaTEAcher » Nov 30th, '12, 01:18

Anyone know what would happen if zini or hongni were mixed with cobalt?
User avatar
needaTEAcher
 
Posts: 505
Joined: Oct 6th, '1
Location: Hong Kong, next China

Re: Lvni and Mao Lvni firing temps

Postby MarshalN » Nov 30th, '12, 02:46

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
MarshalN
 
Posts: 2105
Joined: Mar 15th, '

Re: Lvni and Mao Lvni firing temps

Postby needaTEAcher » Nov 30th, '12, 07:36

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
needaTEAcher
 
Posts: 505
Joined: Oct 6th, '1
Location: Hong Kong, next China

Re: Lvni and Mao Lvni firing temps

Postby MarshalN » Nov 30th, '12, 10:26

No, it's just that you're more likely to get real answers than what you'd get here.
User avatar
MarshalN
 
Posts: 2105
Joined: Mar 15th, '


Instant Messenger

Permissions
You cannot post new topics
You cannot reply to topics
You cannot edit your posts
You cannot delete your posts
You cannot post attachments
Navigation