| abstract |
A titanate whisker characterized by high heat resistance, excellent chemical resistance and reinforcing performance and low thermal conductivity. The whisker is represented by the general formula: A I v A II w M II x M III y Ti 3-z O 16 , wherein A 1 is at least one member selected from among alkali metals; A II is Ba; M II is at least one member selected from among Mg, Co, Ni, Zn, Cu and Mn; M III is at least one member selected from among Al, Sc, Cr, Fe and Ga; and v, w, x, y and z are real numbers satisfying the relationships: 0,5≤2x+y≤2,5 , 2x+y=v+2w and z=x+y . |