Glass and glass are blended at {HEAD ~ a weight ratio} of 10:90 to 90:10 in such a manner that {TAIL ~ the weight average CTE} of the blended glasses is equal to or approximately equal to the CTE of the substrate 
Glass and glass are blended at { HEAD ~ a weight ratio } of 10:90 to 90:10 in such a manner that { TAIL ~ the weight average CTE } of the blended glasses is equal to or approximately equal to the CTE of the substrate
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH