Try: Atomergic Chemetals Corporation

71 Carolyn Boulevard, Farmingdale, New York 11735
Tel: (631) 694-9000     Fax: (631) 694-9177
E-mail: [email protected]

BERYLLIUM
For Research and Development
99.9% pure and 99.99% pure

Properties:

CAS Number
 [7440-47-7]

Atomic Weight
 9.0122

Specific Gravity
 1.846

Color
 Gray

Form
 Lump Pieces

Melting Point
 1290o C

Boiling Point
 2970o C


Typical Analysis:

 99.9% pure 99.99% pure
Aluminum 30 ppm 2.00 ppm
Calcium 25 0.20
Chromium 10 10.00
Copper 10 3.00
Iron 25 20.00
Magnesium 20 0.09
Manganese 30 10.00
Silicon 25 1.00
Titanium 10 0.07
BeO < 600 < 20

Applications:          For research in Aerospace and Electronics

Usage:                    P-Type dopant for semiconductor devices
                          X-ray windows and tubes
                          Neutron source

Beryllium is a Strategic Commodity which is controlled by the US government
for reasons of Nuclear Non-proliferation and Anti-Terrorism. All US export
regulations must be strictly adhered to.

Beryllium is a potentially hazardous material. Customers should familiarize
themselves with the Material Safety Data Sheet for hygienic and exposure risks
before using this product. Customers must assume all legal liability for
purchase of this product. Atomergic will assume no liability after the product
is sold.



Copyright Atomergic Chemetals Corp. All rights reserved worldwide.


On Fri, 5 Jul 2002 14:20:54 +0200 Stefan Wiechmann 
wrote:

Hi all,

I am looking for beryllium substrates for Rutherford Backscattering (RBS)
analysis. There seems to be no more supplier due to berylliums toxicity. I
can buy thin foils at STREM for example, but I need a rigid substrate at
least 10 mm in diameter and at least 200 um thick.

I'd be very grateful for any help,

Stefan.
-------------------------------------------
Stefan Wiechmann
Technical University of Hamburg-Harburg
Micro Systems Technology 4-07
Eissendorfer Str. 42
21073 Hamburg
GERMANY
Tel: ++49 (0)40 42878 2397
Fax: ++49 (0)40 42878 2396
_______________________________________________
[email protected] mailing list: to unsubscribe or change your list
options, visit http://mail.mems-exchange.org/mailman/listinfo/mems-talk
Hosted by the MEMS Exchange, providers of MEMS processing services.
Visit us at http://www.memsnet.org/


1-360-263-8011