Search for Zirconium Oxide (Zr O2)

Try the following:

Ceramtec

http://www.ceramtec.com/ceramic-materials/zirconium-oxide/?gclid=CNPBs5DX6cACFSdk7Aod90MAxw

Nanoamor

http://nanoamor.com/nanoscale_elements__oxides__carbides___nitrides/?ibp-adgroup=adwords&ibp-keyword=%2Bzirconium%20%2Boxide&ibp-matchtype=b&gclid=CIue35HX6cACFQxp7AodQH8Azg

American Elements

http://www.americanelements.com/zrox.html

Ziroca

http://www.zircoa.com/product.powder.granular/a-grain.html

Saint-Gobain ZirPro

http://www.zirpro.com/zirconia-powders.aspx

Have no idea which would be a less expensive supplier, faster shipments, lower customs fees, etc. Try them and see which suits you best. Several have Dental Grade available. Is that the same as Pharmaceutical Grade? Certificates of Analysis are also available. Don't remember much about it other than I "played around" with it during a Advanced Inorganic Chemistry lab when in school. I preferred the labs that used "Cologne Spirits" more, especially on a Friday.

Good Luck, Old Salt

Thank you a lot for the info!

I was quite concerned cause Sigma Aldrich quoted 6,000 U$ / kg.

After some research I found some suppliers with very affordable preices. None were in the US (did not show up in my browser??!!).

I have jst sent some mails to the contacts you provided. Probably get some news next Mo.

Have a nice weekend!