Module with coating for abrasion testing

Patent metadata

Field	Value
Publication number	US-9659581-B2
Application number	US-201514860535-A
Country	US
Kind code	B2
Filing date	Sep 21, 2015
Priority date	Jan 25, 2012
Publication date	May 23, 2017
Grant date	May 23, 2017

Abstract

A module according to one embodiment includes a body having a tape bearing surface, and a coating on the tape bearing surface. The coating includes a bulk material and one or more sections of a second material at predetermined positions relative to the bulk material. The second material is constructed of a material selected from a group consisting of AlFeSil and Sendust.

First claim

What is claimed is:

1. A module, comprising:
a body having a tape bearing surface; and
a coating on the tape bearing surface,
wherein the module is nonfunctional,
wherein the coating includes a bulk material and one or more sections of a second material at predetermined positions relative to the bulk material,
wherein the second material is constructed of at least one material, the material being selected from a group consisting of: AlFeSil and Sendust.

2. A module as recited in claim 1 , wherein the coating has a similar coefficient of friction as the module of interest.

3. A module as recited in claim 1 , wherein the coating has a deposition thickness of at least about 10 nanometers.

4. A module as recited in claim 1 , wherein the coating is transparent.

5. A module as recited in claim 1 , wherein the coating is primarily polycrystalline alumina.

6. A module as recited in claim 1 , wherein the second material is constructed of AlFeSil.

7. A module as recited in claim 1 , wherein the one or more sections of the second material have defined shapes.

8. A module as recited in claim 1 , wherein at least one of the sections of the second material has a rectangular shape.

9. A module as recited in claim 1 , wherein the second material has a different chemical composition than the bulk material.

10. A module as recited in claim 1 , wherein the second material is constructed of Sendust.

11. A module, comprising:
a body with a tape bearing surface; and
a coating on the tape bearing surface,
wherein the coating includes a bulk material and one or more sections of a second material at predetermined positions relative to the bulk material,
wherein the module is nonfunctional for reading and writing,
wherein the second material is constructed of a material selected from a group consisting of AlFeSil and Sendust.

12. A module as recited in claim 11 , wherein the one or more sections of the second material have defined shapes.

13. A module as recited in claim 11 , wherein at least one of the sections of the second material has a rectangular shape.

14. A module as recited in claim 11 , wherein the second material has a different chemical composition than the bulk material.

Assignees

• IBM

Inventors

• Biskeborn Robert G
• Liang Jason
• Lo Calvin S

Classifications

• G11B5/00821 Primary

  using stationary heads · CPC title

• G11B5/455 Primary

  Arrangements for functional testing of heads; Measuring arrangements for heads · CPC title

• G01N3/56 Primary

  Investigating resistance to wear or abrasion · CPC title

• G11B5/187

  Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features (G11B5/265, {G11B5/29} , G11B5/31 take precedence) · CPC title

• G11B5/255 Primary

  comprising means for protection against wear {(in thin film structures G11B5/3106)} · CPC title