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Accelerated Discovery of Multi-principal Element Alloys and Wide Bandgap Semiconductors Under Extreme Conditions
Accelerated Discovery of Multi-principal Element Alloys and Wide Bandgap Semiconductors Un...
Accelerated Discovery of Multi-principal Element Alloys and Wide Bandgap Semiconductors Under Extreme Conditions

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자료유형  
 학위논문 서양
최종처리일시  
20250211152945
ISBN  
9798342142885
DDC  
541.3
저자명  
Mishra, Saswat.
서명/저자  
Accelerated Discovery of Multi-principal Element Alloys and Wide Bandgap Semiconductors Under Extreme Conditions
발행사항  
[Sl] : Purdue University, 2024
발행사항  
Ann Arbor : ProQuest Dissertations & Theses, 2024
형태사항  
161 p
주기사항  
Source: Dissertations Abstracts International, Volume: 86-04, Section: B.
주기사항  
Advisor: Strachan, Alejandro;Titus, Michael;Bilionis, Ilias;Wang, Haiyan.
학위논문주기  
Thesis (Ph.D.)--Purdue University, 2024.
초록/해제  
요약Advancements in material science are accelerating technological evolution, driven by initiatives like the Materials Genome Project, which integrates computational and experimental strategies to expedite material discovery. In this work, we focus on the reliability of advanced materials under extreme conditions, a critical area for enhancing their technological applications.Multi-principal component alloys (MPEAs) exhibit remarkable properties under extreme conditions. However, their vast compositional space makes a brute-force exploration of potential alloys prohibitive. We address this challenge by employing a Bayesian approach to explore the oxidation resistance of hundreds of alloys, applying computational techniques to accurately calculate and quantify errors in the melting temperatures of MPEAs, and investigating the compositional biases and short-range order in their nucleation behaviors. Furthermore, we scrutinize the role of wide bandgap semiconductors, which are essential in high-power applications due to their superior breakdown voltage, drift velocity, and sheet charge density. The lack of lattice-matched substrates often results in strained films, which enhances piezoelectric effects crucial for device reliability. Our research advances the prediction of piezoelectric and dielectric responses as influenced by biaxial strain and doping in gallium nitride (GaN). Additionally, we delve into how various common defects affect the formation of trap states, significantly impacting the electronic properties of these materials.These studies offer significant advancements in understanding MPEAs and wide bandgap semiconductors under extreme conditions. We also provide foundational insights for developing robust and efficient materials essential for next-generation applications.
일반주제명  
Oxidation
일반주제명  
Semiconductors
일반주제명  
Electric fields
일반주제명  
Genomes
일반주제명  
Point defects
일반주제명  
Energy
일반주제명  
Alloys
일반주제명  
Entropy
일반주제명  
Atomic physics
일반주제명  
Electromagnetics
일반주제명  
Genetics
일반주제명  
Materials science
기타저자  
Purdue University.
기본자료저록  
Dissertations Abstracts International. 86-04B.
전자적 위치 및 접속  
로그인 후 원문을 볼 수 있습니다.

MARC

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■006m          o    d                
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■020    ▼a9798342142885
■035    ▼a(MiAaPQ)AAI31606866
■035    ▼a(MiAaPQ)Purdue26343478
■040    ▼aMiAaPQ▼cMiAaPQ
■0820  ▼a541.3
■1001  ▼aMishra,  Saswat.
■24510▼aAccelerated  Discovery  of  Multi-principal  Element  Alloys  and  Wide  Bandgap  Semiconductors  Under  Extreme  Conditions
■260    ▼a[Sl]▼bPurdue  University▼c2024
■260  1▼aAnn  Arbor▼bProQuest  Dissertations  &  Theses▼c2024
■300    ▼a161  p
■500    ▼aSource:  Dissertations  Abstracts  International,  Volume:  86-04,  Section:  B.
■500    ▼aAdvisor:  Strachan,  Alejandro;Titus,  Michael;Bilionis,  Ilias;Wang,  Haiyan.
■5021  ▼aThesis  (Ph.D.)--Purdue  University,  2024.
■520    ▼aAdvancements  in  material  science  are  accelerating  technological  evolution,  driven  by  initiatives  like  the  Materials  Genome  Project,  which  integrates  computational  and  experimental  strategies  to  expedite  material  discovery.  In  this  work,  we  focus  on  the  reliability  of  advanced  materials  under  extreme  conditions,  a  critical  area  for  enhancing  their  technological  applications.Multi-principal  component  alloys  (MPEAs)  exhibit  remarkable  properties  under  extreme  conditions.  However,  their  vast  compositional  space  makes  a  brute-force  exploration  of  potential  alloys  prohibitive.  We  address  this  challenge  by  employing  a  Bayesian  approach  to  explore  the  oxidation  resistance  of  hundreds  of  alloys,  applying  computational  techniques  to  accurately  calculate  and  quantify  errors  in  the  melting  temperatures  of  MPEAs,  and  investigating  the  compositional  biases  and  short-range  order  in  their  nucleation  behaviors.  Furthermore,  we  scrutinize  the  role  of  wide  bandgap  semiconductors,  which  are  essential  in  high-power  applications  due  to  their  superior  breakdown  voltage,  drift  velocity,  and  sheet  charge  density.  The  lack  of  lattice-matched  substrates  often  results  in  strained  films,  which  enhances  piezoelectric  effects  crucial  for  device  reliability.  Our  research  advances  the  prediction  of  piezoelectric  and  dielectric  responses  as  influenced  by  biaxial  strain  and  doping  in  gallium  nitride  (GaN).  Additionally,  we  delve  into  how  various  common  defects  affect  the  formation  of  trap  states,  significantly  impacting  the  electronic  properties  of  these  materials.These  studies  offer  significant  advancements  in  understanding  MPEAs  and  wide  bandgap  semiconductors  under  extreme  conditions.  We  also  provide  foundational  insights  for  developing  robust  and  efficient  materials  essential  for  next-generation  applications.
■590    ▼aSchool  code:  0183.
■650  4▼aOxidation
■650  4▼aSemiconductors
■650  4▼aElectric  fields
■650  4▼aGenomes
■650  4▼aPoint  defects
■650  4▼aEnergy
■650  4▼aAlloys
■650  4▼aEntropy
■650  4▼aAtomic  physics
■650  4▼aElectromagnetics
■650  4▼aGenetics
■650  4▼aMaterials  science
■690    ▼a0791
■690    ▼a0748
■690    ▼a0607
■690    ▼a0369
■690    ▼a0794
■71020▼aPurdue  University.
■7730  ▼tDissertations  Abstracts  International▼g86-04B.
■790    ▼a0183
■791    ▼aPh.D.
■792    ▼a2024
■793    ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17164301▼nKERIS▼z이  자료의  원문은  한국교육학술정보원에서  제공합니다.

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