Michael Wendt on wed 26 nov 03
In the tradition of Alisa, here is the clay softness test that will be
summarized soon with the others at: http://www.wendtpottery.com/claytest.htm
.
This product is Seattle Pottery's SP 850 Kenzan Porcelain # 1, a ^8-10 body.
The standard core 1" dia x 1" tall was taken from the freshly cut face of a
pug left undisturbed for several months.
Yield force required to reach 30% deformation was 14.85 PSI ( 1.024 x 10^5
N/meter^2)
After wire wedging using the laminar technique 2^30, yield was 10.4 PSI
7.17 x 10^4 N/meter^2)
the samples weighed 28 g wet, 23 g air dried over night.
Regards,
Michael Wendt
Wendt Pottery
2729 Clearwater Ave
Lewiston, ID 83501
wendtpot@lewiston.com
www.wendtpottery.com
Earl Krueger on wed 26 nov 03
Michael,
Are your results from one test or
the averages of multiple tests?
My son-in-law will be here for the weekend.
Need something to keep him occupied.
I'll try and talk him into making up one of your
testers. Ought to keep him busy for most of
one day. Whew!!!!
Earl...
Bothell, WA, USA
Michael Wendt on thu 27 nov 03
Earl asked if the values were averages and they were the same for the three
plugs I pulled from the same pug so they probably don't represent much
except the bag I have but think how little it takes to test a pug, 28 grams
and about 1 minute to size, add weight and record the value.
Regards,
Michael Wendt
Wendt Pottery
2729 Clearwater Ave
Lewiston, ID 83501
wendtpot@lewiston.com
www.wendtpottery.com
| |
|
