?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=PENGARUH+ADITIF+FERRO+MANGANESE+(FeMn)+TERHADAP%0D%0AKARAKTERISTIK+SERBUK+HEMATIT+(%CE%B1-Fe2O3)&rft.creator=WINI+RAHMAWATI%2C+1317041050&rft.subject=+&rft.subject=QC+Physics&rft.description=ABSTRAK%0D%0A%0D%0ADalam+penelitian+ini%2C+telah+diamati+pengaruh+aditif+ferro+manganese+(FeMn)+terhadap+karakteristik+serbuk+hematit+(%CE%B1-Fe2O3).+Proses+preparasi+sampel+menggunakan+metode+mechanical+alloying+dengan+komposisi+aditif+(+0%2C+2+dan+10+)+%25massa.+Serbuk+%CE%B1-Fe2O3+dan+FeMn+dicampur+menggunakan+High+Energy+Milling+(HEM)+selama+1+jam+(dry+milling).+Selanjutnya+sampel+dikalsinasi+pada+suhu+(+900%2C+1000+dan+1100+)+oC+dengan+waktu+penahanan+selama+1+jam.+Pengujian+yang+dilakukan+meliputi+distribusi+ukuran+partikel+dengan+Particle+Size+Analyzer+(PSA)%2C+nilai+kerapatan+serbuk+(true+density)+dengan+metode+Archimedes%2C+analisa+fasa+dengan+X-Ray+Diffraction+(XRD)+serta+analisa+sifat+magnet+menggunakan+Vibrating+Sample+Magnetometer+(VSM).+Hasil+penelitian+menunjukkan+bahwa+terjadi+penurunan+distribusi+ukuran+partikel+sekitar+4%2C30-4%2C77+%CE%BCm+dan+kenaikan+nilai+true+density+sebesar+3%2C12-5%2C11+g%2Fcm3+seiring+dengan+penambahan+aditif+FeMn.+Morfologi+sampel+yang+dihasilkan+bersifat+heterogen+yang+ditunjukan+dengan+banyaknya+puncak+yang+terbentuk+dari+hasil+analisa+PSA.+Karakterisasi+XRD+menunjukkan+fasa+yang+terbentuk+pada+bahan+baku+adalah+fasa+tunggal+%CE%B1-Fe2O3+dan+pada+aditif+terbentuk+fasa+Fe0%2C3Mn0%2C7.+Setelah+di+kalsinasi%2C+terbentuk+fasa+dominan+%CE%B1-Fe2O3+dan+fasa+baru+Fe%2C+Fe2MnO4%2C+MnO2+dan+Fe3O4+pada+serbuk+hematit+dengan+penambahan+aditif+FeMn+(0+dan+2)+%25berat.+Karakterisasi+VSM+menunjukkan+koersivitas+(jHc)+berkisar+235%2C41-1009+Oe+dan+loop+area+berkisar+6-194%2C8+kOe.emu%2Fg.+Kondisi+optimum+dicapai+pada+penambahan+komposisi+2%25wt+FeMn+dengan+suhu+kalsinasi+1000oC+(1+jam)%2C+dimana+nilai+koersivitas+235%2C41+Oe%2C+loop+area+194%2C8+kOe.emu%2Fg.+Berdasarkan+hasil+penelitian+maka+dapat+dikatakan+bahwa+serbuk+hematit+dengan+penambahan+aditif+FeMn+menghasilkan+material+magnetik+lunak.%0D%0AKata+kunci.+Soft+Magnetic%2C+Hematit%2C+Ferro+Manganese%2C+Kalsinasi.%0D%0A%0D%0AABSTRACT%0D%0A%0D%0AThis+study%2C+we+have+examined+the+effect+of+ferro+manganese+(FeMn)+addition+to+hematite+(%CE%B1-Fe2O3)+powder.+The+powder+preparation+process+was+performed+by+mechanical+alloying+method+with+various+addatives+compositions+of+0%2C+2+and+10+%25weight.+The+%CE%B1-Fe2O3+and+FeMn+powder+were+mixed+using+High+Energy+Milling+(HEM)+for+an+hour.+The+milled+samples+were+calcined+at+900%2C+1000+and+1100+%C2%B0C+with+an+hour+of+holding+time.+The+samples+were+charaterized+using+Particle+Size+Analyzer+(PSA)%2C+true+density+by+Archimedes%E2%80%99s+Method%2C+X-Ray+Diffraction+(XRD)+and+also+Vibrating+Sample+Magnetometer+(VSM).+The+results+show+a+decreased+of+particle+size+distribution+which+around+4.30-4.77+%CE%BCm+and+an+increase+in+true+density+of+3.12-5.11+g%2Fcm3+as+the+FeMn+composition+increase.+PSA+results+show+that+samples+are+heterogenous+and+XRD+results+show+that+the+raw+material+contains+single+phase+%CE%B1-Fe2O3+and+the+additive+material+contains+FeO3MnO7.+After+being+calcinated%2C+the+phases+changed+into+Fe%2C+Fe2MnO4%2C+MnO2+and+Fe3O4+for+hematite+powder+with+additives+FeMn+0+and+2+%25weight.+VSM+results+show+that+coercivity+around+235.41-1009+Oe+and+loop+area+around+6-194.8+kOe.emu%2Fg.+The+best+condition+were+achived+at+material+with+2%25+FeMn+using+1000+%C2%B0C+for+calcination+which+the+koercivity+value+is+235.41+Oe+and+loop+area+value+is+184.8+kOe.emu%2Fg.+Recording+to+these+results%2C+hematie+powder+with+additive+FeMn+put+out+to+be+a+soft+magnetic+material.%0D%0AKey+words%3A+Soft+Magnetic%2C+Hematit%2C+Ferro+Manganese%2C+Calcination&rft.publisher=FAKULTAS+MATEMATIKA+DAN+ILMU+PENGETAHUAN+ALAM&rft.date=2017-07-14&rft.type=Skripsi&rft.type=NonPeerReviewed&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F27726%2F1%2FABSTRAK.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F27726%2F2%2FSKRIPSI%2520TANPA%2520BAB%2520PEMBAHASAN.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F27726%2F3%2FSKRIPSI%2520FULL.pdf&rft.identifier=++WINI+RAHMAWATI%2C+1317041050++(2017)+PENGARUH+ADITIF+FERRO+MANGANESE+(FeMn)+TERHADAP+KARAKTERISTIK+SERBUK+HEMATIT+(%CE%B1-Fe2O3).++FAKULTAS+MATEMATIKA+DAN+ILMU+PENGETAHUAN+ALAM%2C+UNIVERSITAS+LAMPUNG.+++++&rft.relation=http%3A%2F%2Fdigilib.unila.ac.id%2F27726%2F