{HEAD ~ The metal substrate} prepared in step is immersed in the slurry and subjected to cathodic polarization at {TAIL ~ a voltage} of 100 400 V, thereby glass particles are deposited on the metal substrate surface 
{ HEAD ~ The metal substrate } prepared in step is immersed in the slurry and subjected to cathodic polarization at { TAIL ~ a voltage } of 100 400 V , thereby glass particles are deposited on the metal substrate surface
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH REL OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH