Absorption coeffcient of alumina

  • Thread starter bhartish
  • Start date
  • #1
bhartish
26
0
I am solving a temperature distribution problem related to laser drilling. In the equation I am encountering a term called ' Absorption or extinction coeffcient' of alumina. Can anybody tell how to find this ?
 

Answers and Replies

  • #2
Astronuc
Staff Emeritus
Science Advisor
20,992
5,049
One may wish to read this article:
Abrupt Increase of the Absorption Coefficient of Alumina at Melting by Laser Radiation and Its Decrease at Solidification
Vadim A. Petrov
International Journal of Thermophysics (impact factor: 0.95). 04/2012; 30(6):1938-1959. DOI:10.1007/s10765-009-0678-z

"The importance of kinetics in the abrupt change of the absorption coefficient of molten Al2O3 is noted. "

Meanwhile, there is a discussion of extinction coefficient here:
http://www.emtinc.us/images/Sapphire_vacuum_UV.pdf [Broken]
 
Last edited by a moderator:

Suggested for: Absorption coeffcient of alumina

Replies
0
Views
1K
  • Last Post
Replies
4
Views
193
Replies
3
Views
2K
Replies
1
Views
476
Replies
8
Views
423
Replies
2
Views
884
  • Last Post
Replies
17
Views
874
Replies
1
Views
275
Replies
1
Views
500
Replies
6
Views
502
Top