A movie that understands the awesomeness of "gallium" which makes metal bat break down by hands

Metal "gallium" with a melting point of 29.8 degrees has the effect of weakening metals such as aluminum and silver. In order to confirm this, an experiment that gallium is applied to a metal bat and it is clasped by hand is carried out, and the state is released on YouTube.

Gallium Induced Structural Failure of an Aluminum Baseball Bat - YouTube


I prepared a metal bat made of aluminum.


Of course, the metal bat does not bother it even if it grasps it with the force in the state without doing anything.


First of all, we will scrape the surface paint with rasp. This is because liquid gallium makes it easy to soak into the aluminum part under the paint.


After scraping the surface paint, set a metal bat in a beaker placed on a hot plate.


Pour liquid gallium into it. Gallium has a melting point as low as 29.76 degrees, and if it warms up slightly it will melt easily.


After putting gallium, set the hot plate at 70 degrees and leave it for about 2 days so that gallium will not set.


Take out the metal bat after 2 days. Almost no gallium remained in the beaker, and it seems that most of the gallium was soaked in the metal bat.


The metal bat taken out from gallium has already been broken due to holes and cracks.


If you grab a metal bat with your hand, it will collapse easily and easily.


Besides the tip part that was immersed in gallium, it is also possible to crush the body part of the metal bat to be fine.



However, when approaching the root of the bat, it was hard whether gallium was not permeated.


Aluminum is composed of many fine crystal grainsPolycrystal. It seems that gallium permeates into the crystal grain boundary between crystal grains constituting this aluminum polycrystalline body, which lowers the strength of the crystal grain boundary and makes it brittle.