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Path: ...!3.eu.feeder.erje.net!feeder.erje.net!panix!.POSTED.2602:f977:0:1::3!not-for-mail From: vjp2.at@at.BioStrategist.dot.dot.com Newsgroups: sci.electronics.repair Subject: Glass tubes vs tin whiskers Date: Sat, 6 Jul 2024 04:29:29 -0000 (UTC) Organization: Samani Marions Panyaught NYS-13760-4251-019-USA Message-ID: <v6ah79$r5b$1@reader1.panix.com> Injection-Date: Sat, 6 Jul 2024 04:29:29 -0000 (UTC) Injection-Info: reader1.panix.com; posting-host="2602:f977:0:1::3"; logging-data="27819"; mail-complaints-to="abuse@panix.com" User-Agent: tin/2.6.3-20231224 ("Banff") (NetBSD/10.0_RC3 (amd64)) Bytes: 1273 Lines: 11 Unlike lead, tin solder grows dendrites or whiskers which can short circuit. Same principle as concrete stalagtites growing beneath concrete overpasses. Some of the problems with battery fires are also caused by lithium dendrites. Speculation is that major space and car disasters where caused by tin whiskers. Makes me wonder, at least for very critical components (eg space or mil), maybe they should be put in glass vaccuum or argon tubes. Anyone know more? -- Vasos Panagiotopoulos panix.com/~vjp2/vasos.htm ---{Nothing herein constitutes advice. Everything fully disclaimed.}---