What is "derformation equipment?It would be good if I could get a definition.

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bandmanjoe's profile pic

bandmanjoe | Middle School Teacher | (Level 2) Senior Educator

Posted on

I performed a search for "derformation" and didn't find anything, so I am hoping you misspelled it and the correct term is "deformation".  I have listed a reference link for you on the subject of mechanical deformation, or creep, as it is commonly called.  All substances have a point at which they become subject to the inner stresses that are placed upon them as a result of the environment they are in.  That point, which is relatively close to the melting point of the substance, is called the deformation point.  It is the point at which substances in objects become permanently disfigured from their original orientation.

Now, deformation equipment, that would depend on the substance and it's physical properties.  Different substances will have different melting points.  Tungsten, for example has a melting point that requires thousands of degrees, while ice has a melting point of zero degrees, on the Celsius scale.  So the equipment required for the deformation of tungsten would require some type of apparatus capable of creating a super-high temperature, while ice would require little more than allowing it to sit at room temperature.

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jgeertz's profile pic

jgeertz | College Teacher | (Level 1) Associate Educator

Posted on

Geologists experimentally duplicate the process of rock deformation in laboratories by placing rock and mineral samples into stress states through the use of machines that generate high ambient pressure and temperature. Machinery used to deform rocks falls into two broad categories- one where the pressure medium is a weak solid and the other where the pressure medium is a gas. Solid media machines can deform samples at temperatures up to 1500 degrees Celsius with pressures of 3.0 GPa. Gas media machines are used up to 1400 degrees Celsius with pressures of .7 GPa.

A deformation machine can be defined as a collection of systems used to study rock and mineral samples by confining pressure and differentiating load, strain, temperature, and pore pressure.

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