Previous in Forum: Why Not Engineer Freedom?   Next in Forum: Sending DNA Over the Internet
Close

Comments Format:






Change Mode
Close

Subscribe to Discussion:

CR4 allows you to "subscribe" to a discussion
so that you can be notified of new comments to
the discussion via email.

Close

Rating Vote:







Add Vote
9 comments
Rate this Comments: Nested
Anonymous Poster #1

Chemical Removal of AR-Coating From Zinc Sulfite (ZnS) Substrate

01/24/2019 8:25 PM

I have dome (6" diameter & 4" height) shaped ZnS substrates.

Coated both sides ( CX & CC) with YF3/ZnS/MgF2 ( 10 -20 layer coating in IR region).

I need to remove these coatings without damaging ZnS-dome.

I'm in USA working in a sophisticated Lab.

Anybody has any idea?
Reply
Interested in this topic? By joining CR4 you can "subscribe" to
this discussion and receive notification when new comments are added.

Comments rated to be Good Answers:

These comments received enough positive ratings to make them "good answers".

Comments rated to be "almost" Good Answers:

Check out these comments that don't yet have enough votes to be "official" good answers and, if you agree with them, rate them!
2
Anonymous Poster #2
#1

Re: Chemical removal of AR-Coating from Zinc Sulfite (ZnS) substrate.

01/24/2019 9:13 PM

Send it to an even more sophisticated lab.
Reply Good Answer (Score 2)
No more Good Answers. Go to first "Almost" Good Answer
lyn
Guru

Join Date: Oct 2008
Posts: 42377
Good Answers: 1691
#2

Re: Chemical removal of AR-Coating from Zinc Sulfite (ZnS) substrate.

01/24/2019 9:42 PM

Send it to Ghina.

Home

Mgf 2 , Yf 3 , Zns , Znse, Latio3, Cryol, China New Metal Materials Tech...
Reply
SolarEagle
Guru

Join Date: Mar 2007
Location: by the beach in Florida
Posts: 33268
Good Answers: 1808
#3

Re: Chemical removal of AR-Coating from Zinc Sulfite (ZnS) substrate.

01/24/2019 10:09 PM

You might find something here...

https://apps.dtic.mil/dtic/tr/fulltext/u2/a105395.pdf

__________________
 All living things seek to control their own destiny....this is the purpose of life
Reply Score 1 for Good Answer
No more "Almost" Good Answers.
SolarEagle
Guru

Join Date: Mar 2007
Location: by the beach in Florida
Posts: 33268
Good Answers: 1808
#4
In reply to #3

Re: Chemical removal of AR-Coating from Zinc Sulfite (ZnS) substrate.

01/25/2019 12:23 AM

Looks like laser is the way to go...

https://www.science.gov/topicpages/l/laser+coating+removal#

__________________
 All living things seek to control their own destiny....this is the purpose of life
Reply
RafiqAlam
Participant

Join Date: Jan 2019
Posts: 2
#8
In reply to #4

Re: Chemical removal of AR-Coating from Zinc Sulfite (ZnS) substrate.

02/01/2019 3:33 PM

I did go through the article, but no help!

Thank you.
Reply
RafiqAlam
Participant

Join Date: Jan 2019
Posts: 2
#7
In reply to #3

Re: Chemical removal of AR-Coating from Zinc Sulfite (ZnS) substrate.

02/01/2019 11:41 AM

Yes! I did go through this Article, but no help!
Reply
Nigh
Guru
United Kingdom - Member - Old New Member

Join Date: Jul 2005
Location: South east U.K.
Posts: 3656
Good Answers: 93
#5

Re: Chemical Removal of AR-Coating From Zinc Sulfite (ZnS) Substrate

01/25/2019 1:04 PM

MgF2 dissolves in water, don't know about the ZnS.

__________________
 I didn't have a really important life, but at least it's been funny (Lemmy Kilminster 1945-2015)
Reply
HiTekRedNek
Guru

Join Date: Oct 2006
Location: 44.56024"N 15.307971E
Posts: 7839
Good Answers: 264
#6

Re: Chemical Removal of AR-Coating From Zinc Sulfite (ZnS) Substrate

01/26/2019 2:00 PM

Send it to/dev/null.

Problem solved.

__________________
 "A man never stands so tall as when he stoops to help a child." "Never argue with a stupid person.They will drag you down to their level and beat you with experience" "Homo homini lupus"
Reply
PWSlack
Guru
United Kingdom - Member - Indeterminate Engineering Fields - Control Engineering - New Member

Join Date: Jan 2007
Location: In the bothy, 7 chains down the line from Dodman's Lane level crossing, in the nation formerly known as Great Britain. Kettle's on.
Posts: 32063
Good Answers: 838
#9

Re: Chemical Removal of AR-Coating From Zinc Sulfite (ZnS) Substrate

03/16/2019 4:29 PM

Select something that dissolves the coating without dissolving the substrate. All that is needed is either a corrosion chart or a few sample tests in the <...sophisticated laboratory...>.

__________________
 "Did you get my e-mail?" - "The biggest problem in communication is the illusion that it has taken place" - George Bernard Shaw, 1856
Reply
Reply to Forum Thread 9 comments
Interested in this topic? By joining CR4 you can "subscribe" to
this discussion and receive notification when new comments are added.

Comments rated to be Good Answers:

These comments received enough positive ratings to make them "good answers".

Comments rated to be "almost" Good Answers:

Check out these comments that don't yet have enough votes to be "official" good answers and, if you agree with them, rate them!
Copy to Clipboard

Users who posted comments:

Anonymous Poster (1); HiTekRedNek (1); lyn (1); Nigh (1); PWSlack (1); RafiqAlam (2); SolarEagle (2)

Previous in Forum: Why Not Engineer Freedom?   Next in Forum: Sending DNA Over the Internet

Advertisement

Got Something to Say?
Ask a Question
Start a Discussion

Search this Forum
BioMech & BioMed:
Go

CR4 Sections
Aerospace
BioMech & BioMed
Chemical & Material Science
Civil Engineering
Communications & Electronics
Education and Engineering Careers
Electrical Engineering
General Discussion
Instrumentation
Manufacturing
Mechanical Engineering
New Technologies & Research
Software & Programming
Sustainable Engineering
Transportation

Site Directories
Forum Directory
Blog Directory
User Group Directory
RSS Feeds

CR4 Rules of Conduct
CR4 FAQ
Site Glossary

Who's Online (26 right now)
Show Members
Advertisement