Abrasive Particles under the SEM


Here is a selection of SEM images of various abrasive particles:

HA_CrOx_03
chromium oxide
HA_CrOx_01
chromium oxide
HA_CrOx_02
chromium oxide
HA_CrOx_04
chromium oxide
poly_diamond_100nm_02
100nm poly-diamond spray
poly_diamond_250nm_03
250nm poly-diamond spray
KenS_250nm_cBN_10
250nm cubic boron nitride (CBN) spray.
garnets
Garnets from a Belgian Coticule hone.
Cerium_Oxide
Cerium oxide particle (poly-crystalline).
KenS_250nm_cBN_11
250nm CBN spray.
KenS_250nm_cBN_12
250nm CBN spray
KenS_100nm_cBN_11
100nm CBN spray.
KenS_100nm_cBN_11
100nm CBN spray.
HA_quarter_micron_03
250nm mono-diamond spray.
KenS_100nm_cBN
100nm CBN spray.
HA_half_micron_04
500nm mono-diamond spray.
HA_half_micron
500nm mono-diamond spray.
HA_half_micron_01
500nm mono-diamond spray.
Cerium_Oxide_03
Cerium oxide particle (poly-crystalline).
TI_white_rasoir_03
Thiers Issard white Pate A Rasoir.

 

TI_white_rasoir_04
Thiers Issard white Pate A Rasoir.

 

TI_white_rasoir_06
Thiers Issard white Pate A Rasoir.

 

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11 responses to “Abrasive Particles under the SEM”

  1. Interesting how the diamond sprays don’t have the crystalline form expected. Interesting, but not surprising, at how perfect the crystals are in the CrOx.

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  2. This is awesome stuff, I appreciate the time and effort you have taken on this Blog, it’s very enlightening.

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  3. Hi Todd,
    I have some calcined white submicron aluminum oxide powder. Its supposed to be 0.25 micron, at least that is what is was told. I would be willing for give you some to have, and I would also be interested if the particle size is accurately sifted/graded.

    Thanks,
    Mike

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  4. Is this kind of ‘specially prepared’ chromium oxide or just a regular powder from chemical store?
    Also, do these crystals break readily with use or do they behave as large irregular lumps?

    It’s really satisfying just to look at them.

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    • This.particular sample was purchased from an online seller of straight razor gear, so the provenance is unknown to me. I would speculate that these crystals could be separated, but I doubt it occurs readily on a soft strop.

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