Yes, I did. It is quite time consuming because the hotplate I am using now
doesn't have a temperature control system. I turn down the temperature
button little by little by myself.  But still I heard the noise of glass
cracking during the cooling process(I can't see the glass because I have an
insulator on top pf the glass).


On Fri, Feb 27, 2009 at 12:40 PM, [email protected] wrote:

> Are you ramping the temperature down to avoid thermal shocking the
> bonded pair?

--
Jingru