Such pressures have been reached before, but only with shock waves that also create high temperatures — hundreds of thousands of degrees or more — that are not realistic for planetary interiors. (sciencedaily.com)
The front end has a plasma torch that gets up to many thousands of degrees Celsius, as hot as the sun's surface. (discovermagazine.com)
The surface of that mini Earth is literally thousands of degrees. (climateofsophistry.com)