Yes, the SMTA Bookstore carries "The Mechanics of Solder Alloy Wetting and
Spreading" by Yost, Hosking and Frear; "The Mechanics of Solder Alloy
Interconnects" by Frear, Morgan, Burchett, and Lau; and ten other books
devoted to soldering (plus seventy other titles).

Feel free to contact me for details ([log in to unmask], 612-920-7682), or
check out www.smta.org.

-David


At 11:41 AM 4/25/98 EDT, you wrote:
>Hi,
>If you are dealing with high temperature solders and high temperature
>operating  and concerned about fatique stength, creep, cracking etc. you must
>understand that these solders may constantly change character above 150
deg C.
>The high lead solders develop large coarse grains and cracking generally
>occurs across the grains at a much lower fatique life than first tests on the
>solder would indicate.  Some of the high tin solders also have property
>changes, if thermally aged before testing.  The Au80Sn20 seem to be more
>resistant but there is a phase change at 190 deg C that could also affect its
>properties.  If you are going to use high temperature solders at high
>operating tempertures, it is best to age the joints for 4-8 hours at the
>operating temperature before starting you life test.  See books and articles
>by Frear and Yost about some of these high temperature effects.  These are
>usually available a University Science Libraries or SMTA has a bookstore that
>I think lists some of them.
>
>Phil HInton
>
>Phil Hinton
>
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