Subject: Materials Science D Composites materials that are engineered combinations of two or more different .materials True False 2- Ceramics are compounds between metallic .and nonmetallic elements True False 3 Biomaterials are employed in components implanted into the human body to replace diseased or damaged body parts True False A crystalline material is one in which the atoms are situated in a repeating or periodic .array over large atomic distances True False . Non-crystalline solids sometime are called polycrystalline True False