{"id":999,"productCode":"CICR25CC0004N","chemicalCode":"Cr","name":"Chromium metal","customName":null,"otherNames":"","formula":"Cr","purity":99.99,"form":"CI","size":"25 cc","composition":"","description":"(Starter source)","productionMethod":"vac. melted","bulkAvailable":null,"productionStatus":"Stock","hazmat":null,"status":null,"repackage":false,"priceBase":"240.00","quantityBase":"pcs","bulkAvailability":false,"inProduction":"","factoryCode":"","publicComments":"","privateComments":"","chemicalCodeLetters":null,"image":null,"sizeData":"{\"formSize\":\"7\",\"size_form\":[{\"input_value\":\"25\"},{\"text\":\"cc\"}]}","isLocked":false,"isSearchable":true,"storedLocation":null,"chemicalId":272,"old_chem_id":null,"createdAt":"2017-03-30T18:38:27.000Z","updatedAt":"2017-03-30T18:38:27.000Z","deleted":false,"deletedAt":null,"userChangedById":null,"hts":null,"Chemical":{"id":272,"formula":"Cr","productLetters":"CR","name":"Chromium","otherNames":"Chromium metal","cas":"7440-47-3","einecs":"231-157-5","hazmat":"Powder: Class 4.1, UN3089, PG III","data":"","applications":[{"title":"Sputtering","description":"Chromium sputtering targets are used to create thin films for decorative coatings, hard wear-resistant layers, and as adhesion layers in microelectronics."},{"title":"Alloying","description":"Chromium is a primary alloying element in stainless steel and superalloys to provide corrosion resistance and high-temperature strength."},{"title":"Optical coating","description":"Chromium is utilized in optical coatings to create reflective surfaces and as a masking material in photolithography."},{"title":"Evaporation materials","description":"High-purity chromium pellets and pieces are used as evaporation materials for physical vapor deposition to form thin metallic films."},{"title":"Thermal spray powder","description":"Chromium and chromium carbide powders are used in thermal spray processes to provide surface protection against wear, erosion, and high-temperature oxidation."}],"publicComments":"

Chromium is widely used in optical coating materials as an absorbing and masking metal for visible and infrared optical components.1,2 In evaporation and sputter deposition, chromium serves as a stable thin-film material and as an adhesion promoting layer in multilayer optical stacks.2,3 As a refractory metal, chromium exhibits its high thermal stability and oxidation resistance, supporting its use in high temperature coatings and chromium containing compound systems.4 It is also used in advanced manufacturing, primarily as an alloying or coating element in additive manufacturing to enhance wear resistance and surface performance.5

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References:

  1. Macleod, H. A., Thin-Film Optical Filters, 4th ed., CRC Press, 2010. 

  2. Pulker, H. K., Coatings on Glass, Elsevier, 1999.

  3. Ohring, M., Materials Science of Thin Films, 2nd ed., Academic Press, 2002.

  4. ASM Handbook, Vol. 2: Properties and Selection: Nonferrous Alloys and Special-Purpose Materials, ASM International. 

  5. DebRoy, T. et al., “Additive manufacturing of metallic components – Process, structure and properties,” Progress in Materials Science, 92 (2018) 112–224. 
     

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