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VERSION:2.0
PRODID:icalendar-ruby
CALSCALE:GREGORIAN
X-WR-CALNAME:Final Doctoral Defense Notification for Alan Devoe
X-WR-TIMEZONE:Central Time (US & Canada)
BEGIN:VEVENT
DTSTAMP:20260910T095502Z
UID:tag:localist.com\,2008:EventInstance_48995842195139
DTSTART:20250307T200000Z
DTEND:20250307T220000Z
DESCRIPTION:Alan Devoe\, a doctoral candidate in materials science and engi
 neering\, will defend their dissertation titled “Ceramic Dielectrics for
  High Temperature Capacitor Applications.” Their advisor\, is Fatih Doga
 n\, is professor in the materials science and engineering department. The 
 dissertation abstract is provided below.\n\nTechnical progress in microele
 ctronics is allowing operation in environments that were previously consid
 ered impossible. Building complete electronic circuits for applications ab
 ove 450C\, such as the planned NASA missions to Venus\, require a varie
 ty of active and passive components\, including multilayer ceramic capacit
 ors (MLCC).\n\nThis study explores calcium zirconate CaZrO3 and magnesium 
 oxide MgO based dielectric compositions for MLCC applications that are cap
 able of operating at extreme temperatures between 450C and 600C. Bot
 h materials were characterized with respect to impurities\, dopants\, crys
 tal structure and microstructural development. Dielectric properties were 
 measured to determine permittivity\, dissipation factor\, and conductivity
  as a function of temperature\, applied voltage and frequency. The MLCC we
 re tested to failure at various voltage and temperature conditions to dete
 rmine the mean-time-to-failure (MTTF) using Weibull statistics. Calculatio
 ns were made to estimate lifespan of capacitors under various conditions\,
  including the maximum allowed voltage to achieve a 10-year lifespan at va
 rious temperatures.\n\nMgO showed lower conductivity and longer lifespan a
 t all combinations of temperature and voltage but also exhibited lower die
 lectric constant. Observations indicated that when operating conditions ar
 e more demanding\, MgO is a superior dielectric. However\, when operating 
 at relatively lower temperatures and voltage conditions where both materia
 ls can have acceptable lifespan and conductivity\, CaZrO3 is superior due 
 to its higher dielectric constant.
GEO:37.955808;-91.776196
LOCATION:McNutt Hall\, 124
SUMMARY:Final Doctoral Defense Notification for Alan Devoe
URL;VALUE=URI:https://calendar.mst.edu/event/final-doctoral-defense-notific
 ation-for-alan-devoe
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