XMD program package is very appropriate as it is designed for the simulation of metals and ceramics

I worked with a lot of material chemists, quite a few of them used the CCP5 DL software:

https://www.ccp5.ac.uk/

Dear Bahman,

Ceramics or oxides may be treated by GULP code which is built for crystalline materials. Also, with GULP you can use a bunch of energetic models for oxides like TiO2. The potentials library consists to use the interatomic potentials from classical models to the more realistic potentials by self optimisation of the particle charges. The QEq which is the more adequate charge-variable potential can be easily included by taking and testing several data fits.

Hope it can help you!

Malek