03810ntm a2200385 i 4500952014000000952012400140999001700264003000800281005001700289006001900306008004100325020003200366040002300398090002800421100003500449245011700484264003400601264001200635300005700647336002100704336002100725337002500746337002300771338002300794338003000817347002400847500005000871502007100921504004000992520225501032610006503287650004503352650001103397942001603408  00102lcc40718REFa10000b10000cREFd2022-01-25l0oFIST .B79 2021 r ThesispT000001785r2022-06-30 00:00:00t1w2022-01-25yTHESIS  00102lcc40718REFa10000b10000cREFd2022-04-12l0oCD13060pT000001786r2023-01-30 00:00:00t1w2022-04-12yTHESIS  c96593d96599MY-KuUP20251125110004.0t||||fr|||| 000 0 220412s2021    my a|||frm||| 000 0 eng d  aTHE0009202(Local)qhardback  aUMPbengcUMPerda  aFIST .B79 2021 r Thesis1 aBryan Andrew Balasan,eauthor.10aComparative study of bi-2223 synthesised via electrospinning and coprecipitation methods /cBryan Andrew Balasan 1aKuantan, Pahang :bUMP,c2021 4c© 2021  axii, 90 pages :billustrations ;c30 cm. +e1 CD-ROM  atext2rdacontent  atext2rdacontent  aunmediated2rdamedia  acomputer2rdamedia  avolume2rdacarrier  acomputer disc2rdacarrier  atext filebPDF2rda  aFaculty of Industrial Sciences and Technology  aThesis (Master of Science ) -- Universiti Malaysia Pahang – 2021  aIncludes bibliographical references3 aCeramic superconducting  materials could enhance the efficiency of electronics,  however, there are issues such as low current density and the requirements of cooling this material  to achieve Meissner effect  which hinders superconductivity. This can be rectified either  with addition or substitutes of foreign rare earth elements to the material to modify their  properties. The objective of the research was to synthesise bismuth-based superconductor  Bi2Sr2Ca2Cu3O10  (Bi-2223)  via  electrospinning,  characterisation  of  thermal,  structural and electrical transport properties of samples, and lastly to study the effect of Pb addition  unto precursors of samples. For this research, electrospinning has downsized the grains  of samples, and samples prepared via coprecipitation was compared with the electrospun  samples to investigate their critical temperature, activation energy and current density.  The  electrospun  samples  were  expected  to  exhibit  grain  morphology  advantage  over  coprecipitation prepared samples to enhance the problem of low current  density present  in  superconductors  stemming  from  weak  intergrain  links  of  grain  boundaries.  The  samples  were  characterised  via  the  naked  eye,  thermal  analysis,  electron  imaging,  crystallography  analysis,  four-point  probe  method  and  magnetic  susceptibility.  The  electrospun  samples  (ES)  investigated  via  electron  imaging  for  pellet  form  had  abundancy of low angled grain boundaries when compared with coprecipitation prepared  samples  (COP).  Critical  temperatures  of  P-COP-2223,  P-ESPb-2223  and  P-ES-2223  achieved  at  98 K, 80 K and 68 K  respectively.  This was due to volume fraction of Bi-2223 phase in the electrospun samples  being lower than of coprecipitated samples. The  current density measurement for P-COP-2223 led with 4928 A/cm2, then P-ESPb-2223 with 1852 A/cm 2 whereas P-ES-2223 not obtainable due to low angled grain boundaries  and  the  instrument’s  low  sensitivity.  This  research  contributes  to  the  effect  of  grain  boundaries by synthesising a denser grain boundary at the expense of weaker pinning centres which proves the capability of synthesising Bi-2223 with electrospinning method.20aFaculty of Industrial Sciences and TechnologyxDissertations 0aUniversities and collegesxDissertations 0aTheses  2lcccTHESIS