Journal
DENTAL MATERIALS JOURNAL
Volume 28, Issue 1, Pages 68-74Publisher
JAPANESE SOC DENTAL MATERIALS DEVICES
DOI: 10.4012/dmj.28.68
Keywords
Chemical mechanical polishing; Titanium; XPS
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Chemical mechanical polishing (CMP) of cpTi (Ti) was carried out Using two types of slurries, acidic and basic colloidal silica containing H(2)O(2) UP to 3 wt%, to obtain flat and mirror-polished surfaces without any contaminated and reacted layers. Polishing behavior and surface properties were investigated using AFM, EPMA, and XPS. Weight loss of Ti polished by CMP Using the basic slurry was larger than that using the acidic one, and surface roughness was less than 2 Urn RMS when basic slurry containing 3 wt% H(2)O(2) was used. Moreover, three kinds of chemical species, OH(-), O(2-), and H(2)O, were detected on the Ti surfaces polished by CMP using these slurries. Results of this study showed that CMP using colloidal silica containing H(2)O(2) successfully created a mirror-polished surface without contaminated and reacted layers.
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