IP Library › Granted Patent US 12,522,732
Granted Patent B2
US 12,522,732 · App. 18/331,647 · Granted Jan 13, 2026

Amorphous coating

Inventors: David A. Smith (Bellefonte, PA); James B. Mattzela (Port Matilda, PA); Paul H. Silvis (Port Matilda, PA); Gary A. Barone (Bellefonte, PA); Martin E. Higgins (Bellefonte, PA)
Assignee: Silcotek Corp.
C09D5/00C23C16/0272C23C16/18C23C16/30C23C16/401C23C16/56C23C30/00Y10T428/265Y10T428/31612Y10T428/31663
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Quick Facts
Patent No.
US 12,522,732
App. No.
18/331,647
Granted
Jan 13, 2026
Kind
B2
Abstract

Amorphous coatings and coated articles having amorphous coatings are disclosed. The amorphous coating comprises a first layer and a second layer, the first layer being proximal to a metal substate compared to the second layer, the second layer being distal from the metal substrate compared to the first layer. The first layer and the second layer comprise carbon, hydrogen, and silicon. The first layer further comprises oxygen.

Claims (26)

1 . An article comprising:

an anti-stiction, wer-resistant chemical vapor deposition coating deposited at a temperature of greater than 200° C., the anti-stiction, wear-resistant chemical vapor deposition coating comprising:

carbon, hydrogen, oxygen and amorphous silicon;

wherein the anti-stiction coating has a ratio of the Carbon: the Silicon: The Oxygen of about 1:2.25:1.75 and the anti-stiction coating has a coefficnent of friction between about 0.58 and about 0.05.

2 . An article comprising:

an anti-stiction, wear-resistant chemical vapor deposition coating deposited at a temperature of greater than 300° C., the anti-stiction, wear-resistant chemical vapor deposition coating comprising:

carbon, hydrogen, oxygen and amorphous silicon;

wherein the article is a piston head, a piston cylinder, tubing, a fitting, a rotary valve, a ball valve, a slide valve, an injector, a piston ring, a sliding o-ring, a cylinder, a regulator, a mixing system, a sampling apparatus, or an analytical system.

3 . The article of claim 2 , wherein the anti-stiction coating comprises an amorphous array of Si—C bonding.

4 . The article of claim 2 , wherein the anti-stiction coating has a coefficient of friction between about 0.58 and about 0.05.

5 . The article of claim 2 , wherein the anti-stiction coating comprises Si—C groups and Si—OH groups.

6 . The article of claim 2 , wherein the anti-stiction coating comprises Si—OH groups and Si—H groups.

7 . The article of claim 2 , wherein the anti-stiction coating comprises Si—H groups and Si—O—Si groups.

8 . The article of claim 2 , wherein the anti-stiction coating comprises Si—O—Si groups and Si—C groups.

9 . The article of claim 2 , wherein the anti-stiction coating comprises Si—O—Si groups and Si—H groups.

10 . The article of claim 2 , wherein the anti-stiction coating comprises Si—C groups, Si—OH groups, and Si—H groups.

11 . The article of claim 2 , wherein the anti-stiction coating comprises Si—C groups, Si—OH groups, and Si—O—Si groups.

12 . The article of claim 2 , wherein the anti-stiction coating comprises Si—C groups, Si—H groups, and Si—O—Si groups.

13 . The article of claim 2 , wherein the anti-stiction coating comprises Si—C groups, Si—OH groups, Si—H groups, and Si—O—Si groups.

14 . The article of claim 2 , wherein the anti-stiction coating comprises Si—C groups.

15 . The article of claim 2 , wherein the anti-stiction coating comprises Si—OH groups.

16 . . The article of claim 2 , wherein the anti-stiction coating comprises Si—H groups.

17 . The article of claim 2 , wherein the anti-stiction coating comprises Si—O—Si groups.

18 . The article of claim 2 , wherein the anti-stiction coating has a greater concentration of the silicon than the oxygen.

19 . The article of claim 2 , wherein the anti-stiction coating has a greater concentration of the oxygen than the carbon.

20 . The article of claim 2 , wherein the first layer has a greater concentration of the silicon than the carbon.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 3, 2023
From: SMITH, DAVID A.; MATTZELA, JAMES B.; SILVIS, PAUL H.; BARONE, GARY A.; HIGGINS, MARTIN E.
To: SILCOTEK CORP.
Reel/Frame 065104/0457 →
Continuity (5)
Continuation 16801230 · Feb 26, 2020
Division 13876328
Provisional Application 61507650 · Jul 14, 2011
Provisional Application 61389777 · Oct 5, 2010
Related Publication 20230383126A1 · Nov 30, 2023
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