Let’s say you had an atomic powered vise with indestructible force field jaws that could generate up to super gravity levels of pressure on everyday materials while containing them inside the compressing force field .
What would happen to iron, rock, tungsten, wood or other everyday materials as they got to the limits of structural compressibility and the force field kept squeezing? ? Explosions? Phase change? Atomic stuff?
You will go through a number of phase changes, and maybe eventually form degenerate matter
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Phase change certainly. Metallic phases for normally non-metallic elements.
There is a whole bunch of science already done on this using diamond anvils.
Thanks!
And if you crank the vice a liiiiittle bit more (OK, a lot more)… quantum black hole.
After this, your vise doesn’t matter any more. Event horizon, like honey badger, don’t give a fuck. It tunnels down headed for the nearest substantial center of gravity – Earth’s center. While orbiting within the Earth, it consumes atoms and molecules and gets more massive, slowly coring out the planet like a worm-riddled apple.
After a few centuries? millennia? Earth is gone and a planetary-mass miniature black hole serenely orbits the Sun where Earth used to be.
Nice work. You haaaad to crank that vise one more turn.
No worries about consuming the earth. As your link says, the micro black hole would evaporate within nano seconds giving off a nasty burst of Hawking radiation as it shrunk down to the Planck mass. Or at least that’s the current standard model understanding of what would happen. As you might imagine it’s hard to get funding to study micro black holes that might eat the planet 
There is no Standard Model understanding of what happens to Planck-scale black holes. Even if we expand the definition of “Standard Model” to include everything we know about gravity, there’s still no understanding. You simply can’t discuss a Planck-scale hole without quantum gravity, which we don’t have.
Not disputing the learned comments just above on micro black holes. As a separate matter we’ve done a few threads on macroscopic, but still “small”, black holes encountering a planet.
The naïve assumption is something as you suggest; an unstoppable vacuum cleaner eating the planet from the inside out in geologically short time.
IIRC the reality is rather more mundane and would take millions of years to make much difference.