Dear all,
                  Does anyone know the diffusivity of Al, Ni, Cr, Li, Nb in
SiO2(at temp 100-300 C)?
              This seems like it should be an easy thing to find...but I'm
having trouble find it (I have
              checked all kinds of Handbook in our library). Please give me some
suggestion.
                  Thanks a lot.

 Regards,
 Yi-Chun Wang / 王逸群
 Electrical Engineering , Tsing-Hua University
 101, Section 2 Kuang Fu Road, Hsinchu, Taiwan
 Tel:  + 886-3-5741066
 Fax: + 886-3-5741067
 E-mail: g925919@oz.nthu.edu.tw
 LabWeb：ychuang.ee.nthu.edu.tw