×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Contact US

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Time dependant thermal properties of glass

Time dependant thermal properties of glass

Time dependant thermal properties of glass

(OP)

Would anybody know where to look for time dependant thermal properties of glass?

I am interested in the conductivity and specific heat at 600 to 1200 degrees celcius.

Thanks.....

RE: Time dependant thermal properties of glass

Check the ACERS online bookstore.

RE: Time dependant thermal properties of glass

1) What is the composition of the glass?
2) Conductivity and specific heat are not generally considered time dependant thermal properties.  However, some variation of parameters can occur during annealing of quenched specimens.
3) The Materials Science and Engineering Handbook, 3rd Edn., pp. 416-420 has data for the thermal conductivities of a number of glasses at various temperatures or over temperature ranges.  The data were taken from Handbook of Glass Data, Part A and Part B, by O. V. Mazurin et al. (1983).

RE: Time dependant thermal properties of glass

The thing for watch for with glasses is devitrification (crystallization). Devitrification is time dependent in cetain temperature windows for different glass compositins. There may be some little specific heat variation due to crystallization. In general, I would expect conductivity to increase with increasing crystallization (i. e. amorphous structures don't conduct heat well).

RE: Time dependant thermal properties of glass

Does anyone here know of a good resource for analyzing glass breakage in the appliance industry?  I am working on reducing breakage associated with TinO2 coated glass and am looking for a good resource.

RE: Time dependant thermal properties of glass

here's some TC data for quartz in W/m/C

from

D.W. Lee and W.D. Kingery, J. American Ceramic Soc., v43, p594 (1960) and G.E. Childs, L.J. Ericks and R.L. Powell, NBS Monograph 131, p514,527 (1973)

1.0985e-001   -268.1
1.5081e-001   -258.1
1.9852e-001   -248.1
2.5175e-001   -238.1
3.0939e-001   -228.1
3.7036e-001   -218.1
4.3367e-001   -208.1
4.9842e-001   -198.1
5.6375e-001   -188.1
6.2890e-001   -178.1
6.9316e-001   -168.1
7.5592e-001   -158.1
8.1663e-001   -148.1
8.7481e-001   -138.1
9.3005e-001   -128.1
9.8202e-001   -118.1
1.0305e+000   -108.1
1.0752e+000   -98.1
1.1161e+000   -88.1
1.1532e+000   -78.1
1.1864e+000   -68.1
1.2160e+000   -58.1
1.2420e+000   -48.1
1.2647e+000   -38.1
1.2845e+000   -28.1
1.3017e+000   -18.1
1.3168e+000   -8.1
1.3304e+000   1.9
1.3495e+000   11.9
1.3711e+000   21.9
1.3909e+000   31.9
1.4091e+000   41.9
1.4258e+000   51.9
1.4413e+000   61.9
1.4556e+000   71.9
1.4688e+000   81.9
1.4812e+000   91.9
1.4928e+000   101.9
1.5037e+000   111.9
1.5141e+000   121.9
1.5241e+000   131.9
1.5337e+000   141.9
1.5430e+000   151.9
1.5522e+000   161.9
1.5613e+000   171.9
1.5705e+000   181.9
1.5796e+000   191.9
1.5889e+000   201.9
1.5984e+000   211.9
1.6082e+000   221.9
1.6182e+000   231.9
1.6286e+000   241.9
1.6394e+000   251.9
1.6507e+000   261.9
1.6624e+000   271.9
1.6746e+000   281.9
1.6874e+000   291.9
1.7008e+000   301.9
1.7147e+000   311.9
1.7292e+000   321.9
1.7444e+000   331.9
1.7602e+000   341.9
1.7767e+000   351.9
1.7939e+000   361.9
1.8117e+000   371.9
1.8302e+000   381.9
1.8494e+000   391.9
1.8692e+000   401.9
1.8898e+000   411.9
1.9111e+000   421.9
1.9330e+000   431.9
1.9557e+000   441.9
1.9790e+000   451.9
2.0030e+000   461.9
2.0277e+000   471.9
2.0530e+000   481.9
2.0790e+000   491.9
2.1056e+000   501.9
2.1329e+000   511.9
2.1609e+000   521.9
2.1895e+000   531.9
2.2187e+000   541.9
2.2486e+000   551.9
2.2790e+000   561.9
2.3101e+000   571.9
2.3419e+000   581.9
2.3742e+000   591.9
2.4072e+000   601.9
2.4408e+000   611.9
2.4750e+000   621.9
2.5099e+000   631.9
2.5454e+000   641.9
2.5816e+000   651.9
2.6185e+000   661.9
2.6560e+000   671.9
2.6942e+000   681.9
2.7332e+000   691.9
2.7729e+000   701.9
2.8135e+000   711.9
2.8548e+000   721.9
2.8969e+000   731.9
2.9400e+000   741.9
2.9839e+000   751.9
3.0289e+000   761.9
3.0748e+000   771.9
3.1219e+000   781.9
3.1700e+000   791.9
3.2194e+000   801.9
3.2700e+000   811.9
3.3220e+000   821.9
3.3754e+000   831.9
3.4302e+000   841.9
3.4867e+000   851.9
3.5448e+000   861.9
3.6048e+000   871.9
3.6666e+000   881.9
3.7304e+000   891.9
3.7963e+000   901.9
3.8645e+000   911.9
3.9350e+000   921.9
4.0080e+000   931.9
4.0837e+000   941.9
4.1622e+000   951.9
4.2436e+000   961.9
4.3282e+000   971.9
4.4160e+000   981.9
4.5074e+000   991.9
4.6024e+000   1001.9
4.7012e+000   1011.9
4.8041e+000   1021.9
4.9113e+000   1031.8
5.0230e+000   1041.8
5.1394e+000   1051.8
5.2608e+000   1061.8
5.3874e+000   1071.8
5.5194e+000   1081.8
5.6572e+000   1091.8
5.8010e+000   1101.8
5.9511e+000   1111.8
6.1077e+000   1121.8
6.3643e+000   1131.8
6.7573e+000   1141.8
7.2139e+000   1151.8
7.7391e+000   1161.8
8.3380e+000   1171.8
9.0157e+000   1181.8
9.7772e+000   1191.8
1.0450e+001   1199.8


here's some SH data for quartz in J/Kg/C

from

R.B. Scott, Cryogenic Engineering, Pub. D. van Nostrand Company, Inc., p329 (1962); C.F. Lucks, H.W. Deem and W.D. Wood, American Ceramic Society Bulletin, vol 39, p313 (1960); and L.H. van Vlack, Physcial Ceramics for Engineers, Addison-Wesley Publiching Co., p146 (1964)


2.6267e+001   -253.1
5.9424e+001   -243.1
9.2045e+001   -233.1
1.2413e+002   -223.1
1.5568e+002   -213.1
1.8669e+002   -203.1
2.1716e+002   -193.1
2.4710e+002   -183.1
2.7650e+002   -173.1
3.0537e+002   -163.1
3.3126e+002   -153.1
3.5508e+002   -143.1
3.7881e+002   -133.1
4.0241e+002   -123.1
4.2583e+002   -113.1
4.4903e+002   -103.1
4.7196e+002   -93.1
4.9459e+002   -83.1
5.1689e+002   -73.1
5.3883e+002   -63.1
5.6038e+002   -53.1
5.8152e+002   -43.1
6.0222e+002   -33.1
6.2246e+002   -23.1
6.4223e+002   -13.1
6.6151e+002   -3.1
6.8029e+002   6.9
6.9856e+002   16.9
7.1631e+002   26.9
7.3354e+002   36.9
7.5024e+002   46.9
7.6640e+002   56.9
7.8204e+002   66.9
7.9715e+002   76.9
8.1173e+002   86.9
8.2579e+002   96.9
8.3933e+002   106.9
8.5236e+002   116.9
8.6490e+002   126.9
8.7694e+002   136.9
8.8851e+002   146.9
8.9961e+002   156.9
9.1025e+002   166.9
9.2046e+002   176.9
9.3024e+002   186.9
9.3961e+002   196.9
9.4859e+002   206.9
9.5720e+002   216.9
9.6544e+002   226.9
9.7334e+002   236.9
9.8091e+002   246.9
9.8818e+002   256.9
9.9516e+002   266.9
1.0019e+003   276.9
1.0083e+003   286.9
1.0145e+003   296.9
1.0205e+003   306.9
1.0263e+003   316.9
1.0320e+003   326.9
1.0374e+003   336.9
1.0427e+003   346.9
1.0479e+003   356.9
1.0529e+003   366.9
1.0578e+003   376.9
1.0627e+003   386.9
1.0674e+003   396.9
1.0721e+003   406.9
1.0767e+003   416.9
1.0813e+003   426.9
1.0858e+003   436.9
1.0903e+003   446.9
1.0947e+003   456.9
1.0991e+003   466.9
1.1034e+003   476.9
1.1077e+003   486.9
1.1120e+003   496.9
1.1162e+003   506.9
1.1204e+003   516.9
1.1245e+003   526.9
1.1285e+003   536.9
1.1325e+003   546.9
1.1363e+003   556.9
1.1401e+003   566.9
1.1436e+003   576.9
1.1471e+003   586.9
1.1503e+003   596.9
1.1533e+003   606.9
1.1561e+003   616.9
1.1585e+003   626.9
1.1607e+003   636.9
1.1625e+003   646.9
1.1645e+003   656.9
1.1670e+003   666.9
1.1694e+003   676.9
1.1719e+003   686.9
1.1743e+003   696.9
1.1767e+003   706.9
1.1792e+003   716.9
1.1816e+003   726.9
1.1841e+003   736.9
1.1865e+003   746.9
1.1889e+003   756.9
1.1913e+003   766.9
1.1938e+003   776.9
1.1962e+003   786.9
1.1986e+003   796.9
1.2010e+003   806.9
1.2034e+003   816.9
1.2058e+003   826.9
1.2082e+003   836.9
1.2106e+003   846.9
1.2131e+003   856.9
1.2155e+003   866.9
1.2179e+003   876.9
1.2203e+003   886.9
1.2227e+003   896.9
1.2251e+003   906.9
1.2275e+003   916.9
1.2299e+003   926.9
1.2323e+003   936.9
1.2347e+003   946.9
1.2371e+003   956.9
1.2395e+003   966.9
1.2419e+003   976.9
1.2443e+003   986.9
1.2468e+003   996.9
1.2492e+003   1006.9
1.2516e+003   1016.9
1.2540e+003   1026.8
1.2564e+003   1036.8
1.2588e+003   1046.8
1.2613e+003   1056.8
1.2637e+003   1066.8
1.2661e+003   1076.8
1.2686e+003   1086.8
1.2710e+003   1096.8
1.2734e+003   1106.8
1.2759e+003   1116.8
1.2783e+003   1126.8
1.2808e+003   1136.8
1.2833e+003   1146.8
1.2857e+003   1156.8
1.2882e+003   1166.8
1.2907e+003   1176.8
1.2931e+003   1186.8
1.2956e+003   1196.8
1.2981e+003   1206.8
1.3006e+003   1216.8
1.3031e+003   1226.8
1.3056e+003   1236.8
1.3081e+003   1246.8
1.3106e+003   1256.8
1.3132e+003   1266.8
1.3157e+003   1276.8
1.3182e+003   1286.8
1.3208e+003   1296.8
1.3233e+003   1306.8
1.3259e+003   1316.8
1.3285e+003   1326.8
1.3311e+003   1336.8
1.3336e+003   1346.8
1.3362e+003   1356.8
1.3388e+003   1366.8
1.3415e+003   1376.8
1.3441e+003   1386.8
1.3467e+003   1396.8
1.3493e+003   1406.8
1.3520e+003   1416.8
1.3547e+003   1426.8
1.3573e+003   1436.8
1.3600e+003   1446.8
1.3627e+003   1456.8
1.3654e+003   1466.8
1.3681e+003   1476.8
1.3708e+003   1486.8
1.3735e+003   1496.8
1.3763e+003   1506.8
1.3790e+003   1516.8
1.3818e+003   1526.8
1.3846e+003   1536.8
1.3874e+003   1546.8
1.3902e+003   1556.8
1.3930e+003   1566.8
1.3958e+003   1576.8
1.3987e+003   1586.8
1.4015e+003   1596.8
1.4044e+003   1606.8
1.4073e+003   1616.8
1.4101e+003   1626.8
1.4131e+003   1636.8
1.4160e+003   1646.8
1.4189e+003   1656.8
1.4219e+003   1666.8
1.4248e+003   1676.8
1.4278e+003   1686.8
1.4308e+003   1696.8
1.4338e+003   1706.8
1.4368e+003   1716.8
1.4398e+003   1726.8

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members! Already a Member? Login



News


Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close