Augstfrekvences elektromagnētiskā laukā radīto silīcija kušanas frontes struktūru modelēšana

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Augstfrekvences elektromagnētiskā laukā radīto silīcija kušanas frontes struktūru modelēšana

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Darbā pētīta nevienmērīgas silīcija kušanas frontes veidošanās peldošās zonas monokristālu audzēšanas procesā. Tiek izteikta hipotēze, ka šīs parādības cēlonis ir inducēto elektrisko strāvu koncentrēšanās kausējumā, kas saistīta ar materiāla īpašību atšķirībām cietam un šķidram silīcijam. Lai aprakstītu nestacionāro kušanas-kristalizācijas procesu, tiek izstrādāts matemātiskais modelis, kas apskata saistītus temperatūras, elektromagnētisko un fāzes laukus. Matemātiskais modelis ar Octave/Matlab valodas palīdzību tiek realizēts aprēķinu programmas veidā. Iegūtie aprēķinu rezultāti parāda kausējuma struktūru veidošanos un to klātbūtnes fizikālos efektus. Tiek demonstrēti skaitliski pētījumi silīcija materiāla īpašību ietekmei uz struktūru veidošanos.

year	journal	country	edition	language
2014-01-01

https://dspace.lu.lv/dspace/handle/7/25733

PEPhysical Sciences and Engineering
- PE2Fundamental Constituents of Matter
  - PE2_1Theory of fundamental interactions
  - PE2_2 Phenomenology of fundamental interactions
  - PE2_3Experimental particle physics with accelerators
  - PE2_4Experimental particle physics without accelerators
  - PE2_6Nuclear, hadron and heavy ion physics
  - PE2_8Gas and plasma physics
  - PE2_5Classical and quantum physics of gravitational interactions
  - PE2_7Nuclear and particle astrophysics
  - PE2_9 Electromagnetism
  - PE2_10Atomic, molecular physics
  - PE2_11Ultra-cold atoms and molecules
  - PE2_18Equilibrium and non-equilibrium statistical mechanics: steady states and dynamics
  - PE2_14Lasers, ultra-short lasers and laser physics
  - PE2_17Metrology and measurement
  - PE2_16Non-linear physics
  - PE2_12Optics, non-linear optics and nano-optics
  - PE2_13Quantum optics and quantum information
  - PE2_15Thermodynamics
- PE1Mathematics
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  - PE1_11Theoretical aspects of partial differential equations
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  - PE11_6Engineering of carbon materials
  - PE11_7Engineering of metal oxides
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  - PE11_9Nanomaterials engineering, e.g. nanoparticles, nanoporous materials, 1D & 2D nanomaterials
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LSLife Sciences
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  - LS4_1Organ and tissue physiology and pathophysiology
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  - LS4_13Other non-communicable diseases (except disorders of the nervous system and immunity-related diseases)
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- LS5Neuroscience and Disorders of the Nervous System
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SHSocial Sciences and Humanities
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