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Re: ATM ZrO2 vs. CeO

To: atm@shore.net
Subject: Re: ATM ZrO2 vs. CeO
From: Anthony Stillman <atmer@flash.net>
Date: Thu, 24 Sep 1998 23:06:41 -0800
In-Reply-To: <199809241935.MAA29514@civic.hal.com>
References: <C1256689.005DBFDF.00@maggie.gen.btz.aia.lu>
Reply-To: Anthony Stillman <atmer@flash.net>
Sender: owner-atm@shore.net


>...(Is) ZrO2...more or less toxic than CeO?


Dwight,

Neither is all that toxic.  However, Ce is very difficult to seperate from
the rest of the Lanthanum group which are both toxic and radioactive.

Also, ZrO2, while leaving a very nice finish, is expensive in optical grade
and is very SLOW as a polishing agent.  Ideally one would use a high grade
of CeO for the majority of the work then, if you must, use ZrO2 to finish.

Anthony

Follow-Ups:
- Re[2]: ATM ZrO2 vs. CeO
  - From: Dwight Elvey <elvey@hal.com>

References:
- Re: ATM Rouge? was Getting the smoothest mirror (no dog biscuit)
  - From: Hugues_Laroche@aia.com
- ATM ZrO2 vs. CeO
  - From: Dwight Elvey <elvey@hal.com>

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