Zinc Sulfide / Cleartran
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CVD Zinc Sulfide® | Cleartran® VIS/IR applications

CVD Zinc Sulfide® | Cleartran® CVD Ceramics‘ chemically vapor deposited CVD Zinc Sulfide® is the low cost alternative for infrared windows, domes and optical elements. With a fracture strength double that of zinc selenide and high hardness, zinc sulfide has been used successfully in many military applications requiring mechanical resistance to hostile environments. Cleartran® is a form of CVD Zinc Sulfide® material that is modified by a post-deposition hot isostatic process. This process removes zinc hydrides from the crystal lattice, normalizes crystal structure and purifies the material,...

Properties of CVD Zinc Sulfide® and Cleartran® Zinc Sulfide Index of refraction inhomogeneity (Dn/n) Crystal structure Mechanical properties Hardness: Knoop, 50g load [kg mm-2] Vickers, 1kg load [kg mm-2] Flexural strength (modulus of rupture) 4pt. loading [psi] 15 x 10 3 4pt. loading [MPa] 103 Disc bursting [MPa] 84 Grain size Fracture toughness (critical stress intensity factor, K IC values) [MPa m, Vickers, 1kg] 0.8 Chemical purity [%] Poisson’s ratio Physical properties Zinc Sulfide

CVD Ceramics North America CVD Ceramics, Inc. 11911 Advanced Materials Drive New Iberia, LA 70560 USA phone + 1 337 867 4263 Ext. 2238 fax + 1 337 867 4494 info@cvdceramics.com www.cvdceramics.com For inquiries please contact our local Sales Representative United Kingdom Ms Carolyne Ockendon Hellma UK Ltd. phone + 44 1702 335 266 fax + 44 1702 430 652 sales.uk@hellma.com For inquiries please contact our local Distributor Hellma Materials GmbH Moritz-von-Rohr-StraRe 1 07745 Jena / Germany phone+ 49 3641 2877-0 fax + 49 3641 2877-200 info.materials@hellma.com www.hellma-materials.com Mr Coby...