HOME
PRODUCTS
GLASS REPAIR
GLASS PROPERTIES
CONTACT US
GLASS HARMONICA
GALLERY
ABOUT US
 
Media Coverage
 
GFI RECESS DATES
ORDERING INFORMATION
ANATOMICAL MODELS
   

.........The Fusion of Art and Science tm .........

G. Finkenbeiner Inc. 33 Rumford Ave Waltham, MA 02453. Telephone: (800)552-6182, 781-899-3138. Fax 781-647-4044

PERMEABILITY

Permeation Time (@ 1000C) 
Ion Diffusion Coefficient D(CM2/sec) Covalent Radius A Heat of Vaporization Thickness or Quartz
5mm 3mm 2mm 1mm 0.5mm 0.1mm
aN 7.00E-06 1.54 97.6 20 min 7.2 min 3.2 min 48 sec 12 sec 0.5 sec
Li 1.00E-06 1.23 145.9 2.6 hrs 57 min 25 min 6.3 min 1.6 min 3.8 sec
Ag 7.00E-07 1.34 250.9 3.7 hrs 1.4 hrs 36.2 min 9 min 2.3 min 5.4 sec
Ca 2.00E-08 1.64 153.6 5.5 days 1.98 days 21 hrs 5.3 hrs 1.3 hrs 3.2 min
K 1.00E-08 2.03 79.9 11 days 3.96 days 42.2 hrs 10.6 hrs 2.6 hrs 6.3 min
Al 1.00E-13 1.18 293.4 3010 years 1084 years 482 years 120 years 30 years 1.3 years
P 8.00E-14 1.06 12.12 3763  years 1355 years 602 years 151 years 38 years 1.5 years
Ni 1.00E-15 1.15 370.4 300K years 110K years 48K years 12K years 3K years 120 years
Au 5.00E-16 1.34 334.4 600K years 220K years 96K years 24K years 6K years 241 years
As 1.00E-16 1.2 34.7 3000K years 1100K years 480K years 120K years 30K years 1204 years
B 1.00E-17 .82 489.7 11000K years 11000K years 4800K years 1200K years 300K years 12K years