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  <titleInfo>
    <title>Investigation on the effect of sintering temperature and composition of titanium (Ti) on  electrical conductivity of al2o3/zro2/ti ceramic composites</title>
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  <name type="personal">
    <namePart>Nur Amalina Sabuan</namePart>
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    <dateIssued encoding="marc">2021</dateIssued>
    <issuance>monographic</issuance>
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  <language>
    <languageTerm authority="iso639-2b" type="code">eng</languageTerm>
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  <physicalDescription>
    <extent>xiii, 90 pages : illustrations (some color) ; 30 cm. + 1 CD ROM</extent>
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  <abstract>Ceramic has remained one of the significant materials owing to its resistance to elevated  temperature and hardness. Nevertheless, ceramics exhibit low electrical conductivity, and  it  is  very  brittle.  These  properties  influenced  the  broad  utilization  of  it  in  various  functions. Most ceramics usually have combination of both covalent and ionic bond. The  number of electrons shared indicates the force of attractions related to strength of covalent  bond. In contrast, neither ionic nor covalent bonding forms free electrons like in metallic  bonding.  Thus,  ceramic  material  has  low  electrical  and  thermal  conductivity.  For  instance,  the  properties  of  low  conductivity  of  ceramics  creates  difficulty  in  terms  of  machining to the obligatory form and complexity utilizing the non-conventional electrical  discharge machining (EDM). The property of electrical conductivity in the ceramics can  be  enhanced  by  the  accumulation  of  conductive  metallic  particles  so  that  its  microstructural property would be altered. Consequently, the electrical conductivity of  ceramic matrix composite of alumina reinforced with titanium (Al2O3/Ti) with different  weight  (w)  percentage  (%)  is  manufactured.  Pressureless  sintering  was  utilized  with  temperature  of  1600°C,1650°C  and  1700°C  to  investigate  for  potential  progress  in  electrical conductivity. A new-found notion on the microstructural-process interaction  for the better electrical conductivity was recognized. The Al2O3/Ti ceramics was noticed  in enhancing its electrical conductivity as the weight percentage (wt%) of Ti increases.  Based on the Scanning Electron Microscopy (SEM) and observation of EDX, rise in the  electrical conductivity is  primarily attributed to the formation of interconnected Ti phases  inside  the  alumina  matrix  after  sintering.  The  formation  of  TiO2  after  sintering  additionally promotes the progress in electrical conductivity. With the constant increased  of Ti content, TiO2  reacted entirely and the volumes of Ti residual also increased. The  new phases are likely to be a contributing factor for the enhanced conductivity of the  alumina matrix. The electrical conductivity sintered at 1600°C with 20 wt% Ti display  greatest improvement in electrical conductivity of 78.795 x 10 3 S/cm related to pure of  Al2O3.</abstract>
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  <note type="statement of responsibility">Nur Amalina Sabuan</note>
  <note>Faculty of Manufacturing and Mechatronic Engineering Technology</note>
  <note>Thesis (Master of Science) -- Universiti Malaysia Pahang – 2021</note>
  <note>Includes bibliographical references</note>
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      <namePart>Faculty of Manufacturing and Mechatronic Engineering Technology</namePart>
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  <identifier type="isbn">THE0009171(Local)</identifier>
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    <recordCreationDate encoding="marc">220317</recordCreationDate>
    <recordChangeDate encoding="iso8601">20251125110026.0</recordChangeDate>
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