In another embodiment, {HEAD ~ the facecoat region} is formed from a slurry composition including {TAIL ~ zirconium silicate} and silica with stucco layer of alumina is included 
In another embodiment , { HEAD ~ the facecoat region } is formed from a slurry composition including { TAIL ~ zirconium silicate } and silica with stucco layer of alumina is included
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH