?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=STUDI+AWAL+REAKSI+MEKANOKIMIA+SERBUK+La(OH)3+MELALUI+PROSES+MILLING+TERHADAP+MORFOLOGI%2C+KOMPOSISI+KIMIA%2CUKURAN+PARTIKEL%2C+DAN+STRUKTUR+KRISTAL+&rft.creator=Sophia+%2C+Yanti+&rft.subject=530+Fisika&rft.description=La(OH)%E2%82%83++telah++disintesis++menggunakan++metode++ball++milling++dengan++gas++hidrogen+untuk++mempelajari++reaksi++mekanokimia++yang++terjadi++pada++material.++Proses++ball+milling+dilakukan+dengan+dua+set+parameter.+Pada+set+pertama%2C+tekanan+gas+hidrogen+sebesar+9%2C39+bar%2C+massa+serbuk+8+gram%2C+kecepatan+300+RPM%2C+dan+durasi+proses+14+hari++dengan++total++waktu++milling++selama++96++jam.++Pada++set++kedua%2C++tekanan++gas+hidrogen+sebesar+2%2C34+bar%2C+massa+serbuk+2+gram%2C+kecepatan+600+RPM%2C+dan+durasi+proses++juga++14++hari++dengan++total++waktu++milling++selama++96++jam.++Selain++itu%2C+serbuk+yang++tidak++mengalami++milling++dianalisis++untuk++menyelidiki++morfologi++dan+komposisi+kimia+La(OH)%E2%82%83+melalui+karakterisasi+SEM-EDS%2C+PSA%2C+dan+XRD.+Proses+mekanokimia++pada++serbuk++La(OH)%E2%82%83++melalui++milling++menghasilkan++perubahan+signifikan++pada++morfologi%2C++ukuran++partikel%2C++dan++struktur++kristal.++Proses++milling+menyebabkan++aglomerasi++partikel++namun++juga++menghomogenkan++ukuran++partikel+yang+awalnya+terdiri+dari+dua+populasi+(100+nm+dan+10.000+nm)%2C+menjadi+rata-rata+sekitar+344%2C7+nm+(MT1)+dan+375%2C0+nm+(MT2).+Selain+itu%2C+distribusi+ukuran+partikel+menjadi++lebih++seragam++dengan++penurunan++PDI.++Milling++juga++mengurangi++ukuran+kristalit%2C+meningkatkan+mikro+regangan%2C+serta+menurunkan+fase+La(OH)%E2%82%83+dari+94%25+menjadi++41%25%2C++diikuti++dengan++kemunculan++fase++La++dan++H%E2%82%82++yang++menunjukkan+perubahan+dalam+kristalinitas+material.+%0D%0AKata+kunci%3A+La(OH)3%2C+mekanokimia%2Cball+milling%2C+gas+hidrogen.%0D%0A%0D%0ALa(OH)%E2%82%83+was+synthesized+using+the+ball+milling+method+with+hydrogen+gas+to+study+the+mechanochemical+reactions+occurring+in+the+material.+The+ball+milling+process+was++carried++out++with++two++sets++of++parameters.++In++the++first++set%2C++the++hydrogen++gas+pressure+was+9.39+bar%2C+the+powder+mass+was+8+grams%2C+the+speed+was+300+RPM%2C+and+the+process+duration+was+14+days+with+a+total+milling+time+of+96+hours.+In+the+second+set%2C++the++hydrogen++gas++pressure++was++2.34++bar%2C++the++powder++mass++was++2++grams%2C++the+speed+was+600+RPM%2C+and+the+process+duration+was+also+14+days+with+a+total+milling+time++of++96++hours.++Additionally%2C++unmilled++powder++was++analyzed++to++investigate++the+morphology+and+chemical+composition+of+La(OH)%E2%82%83+through+SEM-EDS%2C+PSA%2C+and+XRD+characterization.+The++mechanochemical+process+on+La(OH)%E2%82%83+powder+through+milling++resulted++in++significant++changes++in++morphology%2C++particle++size%2C++and++crystal+structure.+The+milling+process+caused+particle+agglomeration+but+also+homogenized+the+particle+size%2C+which+initially+consisted+of+two+populations+(100+nm+and+10%2C000+nm)%2C++to++an++average++of++approximately++344.7++nm++(MT1)++and++375.0++nm++(MT2).+Furthermore%2C+the+particle+size+distribution+became+more+uniform+with+a+decrease+in+PDI.++Milling++also++reduced++the++crystallite++size%2C++increased++the++microstrain%2C++and+decreased+the+La(OH)%E2%82%83+phase+from+94%25+to+41%25%2C+accompanied+by+the+appearance+of+La+and+H%E2%82%82+phases%2C+indicating+changes+in+the+material's+crystallinity.+%0D%0AKeywords%3A+La(OH)%E2%82%83%2C+mechanochemistry%2C+ball+milling%2C+hydrogen+gas.+&rft.publisher=FAKULTAS+MATEMATIKA+DAN+ILMU+PENGETAHUAN+ALAM+&rft.date=2024-12-12&rft.type=Skripsi&rft.type=NonPeerReviewed&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F80874%2F1%2FABSTRAK.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F80874%2F2%2FSKRIPSI%2520FULL.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F80874%2F3%2FSKRIPSI%2520TANPA%2520BAB%2520PEMBAHASAN.pdf&rft.identifier=++Sophia+%2C+Yanti+++(2024)+STUDI+AWAL+REAKSI+MEKANOKIMIA+SERBUK+La(OH)3+MELALUI+PROSES+MILLING+TERHADAP+MORFOLOGI%2C+KOMPOSISI+KIMIA%2CUKURAN+PARTIKEL%2C+DAN+STRUKTUR+KRISTAL.++FAKULTAS+MATEMATIKA+DAN+ILMU+PENGETAHUAN+ALAM+%2C+UNIVERSITAS+LAMPUNG+.+++++&rft.relation=http%3A%2F%2Fdigilib.unila.ac.id%2F80874%2F