The Study of Manufacturing Methodology of Nanocrystals in Science and Engineering

Document Type: Research Paper

Authors

Department of Material Engineering, Islamic Azad University Najaf Abad Branch, Iran

Abstract

Chemical vapor transport (CVT)) is known as one of the most efficient methods of synthesizing nanocrystals. In order to investigate the underlying phenomena in CVT processes, especially the growth rate and growth quality in relation to total pressure, temperatures of source and crystal ends, as well as the entangled chemical reactions, CFD modeling is pursued as a powerful and effective tool in lieu of expensive experimental work. CFD modeling has become an important component of the research or a new research methodology and will become increasingly important for simplifying the investigation of phenomena in processes. This paper is presented on how CFD modeling approach can be used as a research methodology in sciences and engineering.   Two-dimensional numerical modeling on closed ampoule chemical vapor transport of ZnS–I2 system is conducted. The transport rate (TR) and its transition from diffusion-dominated to convection-dominated regimes in relation to total pressure, average temperature is studied intensively. Modeling results reveal that, the transition of TR from diffusion-dominated to convection-dominated regimes depends on P. Compared to the experimental literature values for all growth regimes, the modeling results agree with the experimental data.

Keywords


1. Adel Spotin SR, Parviz Parvizi, Parnazsadat Ghaemmaghami, Ali Haghighi, Aref Amirkhani, Ali Bordbar, Amir Yaghoubinezhad. Different Phenotypic Aspects with No Genotypic Heterogeneity in Leishmania Major Isolates of Suspected Patients in Northern Khuzestan Province. Iranian Journal of Public Health. 2014;43(2).

2. Neda Samei PP, Mohammadreza Khatami Nezhad, Amir Yaghoubinezhad, Narmin Najafzadeh, Adel Spotin. Finding various molecular haplotypes of Leishmania major in human using three HSp70, ITS-rDNA and Cyt b genes.  1st and 13th Iranian Genetics Congress; Tehran2014.

3. Aye Rizvandi MTG, Mohammadreza Esmaeili, Farideh Ashraf Ganjoee. The Evaluation of Performance Indicators of Coaches in Football Development. Journal of Humanities Insights. 2019;3(4).

4. Somayyeh Heidary AYN, Atefeh Mehrabi Far. Colonization and Investigation of Vibrio Cholera Recombination Protein in E-Coli. International Journal of Engineering & Technology. 2018;7(4.7).

5. S. Mojtaba Mostafavi BR. Nanomaterial Chemistry. Toranj Group Publication, Ltd.; 2010.

6. Narmin Najafzadeh MMS, Syed Shuja Sultan, Adel Spotin, Alireza Zamani, Roozbeh Taslimian, Amir Yaghoubinezhad, Parviz Parvizi. The existence of only one haplotype of Leishmania major in the main and potential reservoir hosts of zoonotic cutaneous leishmaniasis using different molecular markers in a focal area in Iran. Revista da Sociedade Brasileira de Medicina Tropical. 2014;47(5).

7. Rizvandi A, Taghipour Gharbi M, Esmaeili M, Ashraf Ganjoee F. The Evaluation of Performance Indicators of Coaches in Football Development. Journal of Humanities Insights. 2019;03(04):248-54.

8. Neda Samei PP, Adel Spotin, Mohammad Reza Khatami Nezhad, Narmin Najafzadeh, Amir Yaghoubinezhad. IDENTIFYING OF CAUSATIVE AGENTS OF CUTANEOUS LEISHMANIASES BY AMPLIFYING CYT B GENE IN INDIGENOUS FOCI OF Iran. Iranian Journal of Public Health. 2014;43(2).