File:Knoop A995.JPG

{{Information

|Description = Knoop hardness indention (P = 1000 gm) in a microstructure of unetched 99.5% Al2O3 ceramic in reflected light.

|Source = self-made

|Date = 22:29, 8 January 2008 (UTC)

|Author = His Manliness (talk)

|Permission = none required.

|other_versions = none.

}}

{{self|GFDL|cc-by-3.0}}

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