Alumina, {HEAD ~ the matrix material}, has {TAIL ~ a thermal expansion coefficient} in the order of 8 10 6 K 1  
Alumina , { HEAD ~ the matrix material } , has { TAIL ~ a thermal expansion coefficient } in the order of 8 10 6 K 1
OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH