TY - JOUR AU - suad hammed aleabi, AU - Anaam Wadi Watan, PY - 2020/09/20 Y2 - 2024/03/29 TI - ????? ????? ??????? ?????? ?????? ??? ??? ?????? ??????????? ????????? ?????? ???? ??? ?????? ?????? ??????? ????????? JF - مجلة المستنصرية للعلوم والتربية JA - Mustansiriyah.J.Sci.Edu VL - 17 IS - 5 SE - DO - UR - https://edumag.uomustansiriyah.edu.iq/index.php/mjse/article/view/53 SP - 107-114 AB - <p>???? ????? ??? ????? ?????? ??????? ?????? ???? ?? ????? ?????? ???? ??? ?????? ?????? ?????? ????????? Al2O3????? ????? ??????% (10?20?30?50) ?????? ??? ??????? ??????????? ???????? (?????? ??????? ????? ???????? ?????? ????????) ??? ???? ????? ????? ????? ??????? ?????? ?????? ??? ??? ??????? ??????????? ??? ????????? ?? ??????? ????? ?? ???? ?? ?? ?????? ?????? ?????? ??????? ?????? ???????? ?????? ????? ?????? ?????? ??( ?????? ?????? ,????? ???????,????? ????????) ?????? ???????</p> ER -