HR-F mndandanda wa spherical aluminium nitride filler ndi chinthu chomwe chimapezeka kudzera mu mapangidwe apadera, kuyeretsedwa kwa nitriding, magulu ndi njira zina.The chifukwa zotayidwa nitride ali mkulu spheroidization mlingo, yaing'ono enieni pamwamba m'dera, yopapatiza tinthu kukula kugawa ndi mkulu chiyero.Mankhwalawa amagwiritsidwa ntchito kwambiri ngati mawonekedwe opangira matenthedwe chifukwa cha kutentha kwake kwapamwamba, fluidity yabwino ndi zina.