1. E faʻaaogaina e avea ma sui faʻasaʻo mold mo polycrystalline silicon ma tioata tasi tioata silicon quartz crucible.Taofi le puipui i totonu o le uʻamea mai le pipii atu i le mea faʻameamea uʻamea, faafaigofie le demolding, ma i le taimi lava e tasi e galue o se pa puipui e faʻamautinoa ai le mama o le mea silicon.Solar-grade silicon nitride paʻu e faʻaaogaina e fai ma sui faʻamalolo ma faʻafefe i luga o le pito i totonu o le polysilicon ingot crucible, o se oloa taua mo le gaosiga o le polysilicon ingot.

2. Silicon nitride o loʻo faʻaaogaina e avea o se mea faʻafefe maualuga.Mo se faʻataʻitaʻiga, SI3N4-SIC refractory o loʻo faʻaaogaina i totonu o le ogaumu afi ma isi vaega i le galulue faʻatasi ma sic;pe a faʻaaogaina faʻatasi ma le BN e pei o le SI3N4-BN mea, e faʻaaogaina i le faʻasolosolo faʻasolosolo mama vavaeeseina.