Solid Diffusion (model) - История изменений

Patarakin в 10:38, 21 августа 2024

2024-08-21T10:38:27Z

← Предыдущая версия		Версия от 13:38, 21 августа 2024
Строка 4:		Строка 4:
	\|Website=https://netlogoweb.org/launch#https://netlogoweb.org/assets/modelslib/Sample%20Models/Chemistry%20&%20Physics/Materials%20Science/Solid%20Diffusion.nlogo		\|Website=https://netlogoweb.org/launch#https://netlogoweb.org/assets/modelslib/Sample%20Models/Chemistry%20&%20Physics/Materials%20Science/Solid%20Diffusion.nlogo
	\|Environment=NetLogo		\|Environment=NetLogo
			\|Student-created=Нет
	}}		}}
	* https://upload.wikimedia.org/wikipedia/commons/4/40/Vacancy_diffusion.gif		* https://upload.wikimedia.org/wikipedia/commons/4/40/Vacancy_diffusion.gif

Patarakin в 12:38, 16 февраля 2024

2024-02-16T12:38:58Z

← Предыдущая версия		Версия от 15:38, 16 февраля 2024
Строка 1:		Строка 1:
	{{Model		{{Model
	\|Description=This model demonstrates a solid diffusion couple, such as copper and nickel. In a real laboratory, such experiment would take place at very high temperatures, for the process to take place in a reasonable amount of time (note that the diffusion coefficient varies exponentially with the inverse of the temperature). There are many mechanisms for diffusion in solids. In this model we demonstrate one of them, which is caused by missing atoms in the metal crystal. The locations, of the missing atoms are often called vacancies. Therefore, this type of diffusion mechanism is referred to as "vacancy diffusion". The extent to which the diffusion can happen depends on the temperature and the number of vacancies in the crystal.		\|Description=This model demonstrates a solid diffusion couple, such as copper and nickel. In a real laboratory, such experiment would take place at very high temperatures, for the process to take place in a reasonable amount of time (note that the diffusion coefficient varies exponentially with the inverse of the temperature). There are many mechanisms for diffusion in solids. In this model we demonstrate one of them, which is caused by missing atoms in the metal crystal. The locations, of the missing atoms are often called vacancies. Therefore, this type of diffusion mechanism is referred to as "vacancy diffusion". The extent to which the diffusion can happen depends on the temperature and the number of vacancies in the crystal.
			\|Field_of_knowledge=Физика, Химия
	\|Website=https://netlogoweb.org/launch#https://netlogoweb.org/assets/modelslib/Sample%20Models/Chemistry%20&%20Physics/Materials%20Science/Solid%20Diffusion.nlogo		\|Website=https://netlogoweb.org/launch#https://netlogoweb.org/assets/modelslib/Sample%20Models/Chemistry%20&%20Physics/Materials%20Science/Solid%20Diffusion.nlogo
	\|Environment=NetLogo		\|Environment=NetLogo

Patarakin в 12:38, 16 февраля 2024

2024-02-16T12:38:27Z

← Предыдущая версия		Версия от 15:38, 16 февраля 2024
Строка 2:		Строка 2:
	\|Description=This model demonstrates a solid diffusion couple, such as copper and nickel. In a real laboratory, such experiment would take place at very high temperatures, for the process to take place in a reasonable amount of time (note that the diffusion coefficient varies exponentially with the inverse of the temperature). There are many mechanisms for diffusion in solids. In this model we demonstrate one of them, which is caused by missing atoms in the metal crystal. The locations, of the missing atoms are often called vacancies. Therefore, this type of diffusion mechanism is referred to as "vacancy diffusion". The extent to which the diffusion can happen depends on the temperature and the number of vacancies in the crystal.		\|Description=This model demonstrates a solid diffusion couple, such as copper and nickel. In a real laboratory, such experiment would take place at very high temperatures, for the process to take place in a reasonable amount of time (note that the diffusion coefficient varies exponentially with the inverse of the temperature). There are many mechanisms for diffusion in solids. In this model we demonstrate one of them, which is caused by missing atoms in the metal crystal. The locations, of the missing atoms are often called vacancies. Therefore, this type of diffusion mechanism is referred to as "vacancy diffusion". The extent to which the diffusion can happen depends on the temperature and the number of vacancies in the crystal.
	\|Website=https://netlogoweb.org/launch#https://netlogoweb.org/assets/modelslib/Sample%20Models/Chemistry%20&%20Physics/Materials%20Science/Solid%20Diffusion.nlogo		\|Website=https://netlogoweb.org/launch#https://netlogoweb.org/assets/modelslib/Sample%20Models/Chemistry%20&%20Physics/Materials%20Science/Solid%20Diffusion.nlogo
			\|Environment=NetLogo
	}}		}}

	* https://upload.wikimedia.org/wikipedia/commons/4/40/Vacancy_diffusion.gif		* https://upload.wikimedia.org/wikipedia/commons/4/40/Vacancy_diffusion.gif

Patarakin: Новая страница: «{{Model |Description=This model demonstrates a solid diffusion couple, such as copper and nickel. In a real laboratory, such experiment would take place at very high temperatures, for the process to take place in a reasonable amount of time (note that the diffusion coefficient varies exponentially with the inverse of the temperature). There are many mechanisms for diffusion in solids. In this model we demonstrate one of them, which is caused by missing atoms...»

2024-02-16T12:37:58Z

Новая страница: «{{Model |Description=This model demonstrates a solid diffusion couple, such as copper and nickel. In a real laboratory, such experiment would take place at very high temperatures, for the process to take place in a reasonable amount of time (note that the diffusion coefficient varies exponentially with the inverse of the temperature). There are many mechanisms for diffusion in solids. In this model we demonstrate one of them, which is caused by missing atoms...»

Новая страница

{{Model
|Description=This model demonstrates a solid diffusion couple, such as copper and nickel. In a real laboratory, such experiment would take place at very high temperatures, for the process to take place in a reasonable amount of time (note that the diffusion coefficient varies exponentially with the inverse of the temperature). There are many mechanisms for diffusion in solids. In this model we demonstrate one of them, which is caused by missing atoms in the metal crystal. The locations, of the missing atoms are often called vacancies. Therefore, this type of diffusion mechanism is referred to as "vacancy diffusion". The extent to which the diffusion can happen depends on the temperature and the number of vacancies in the crystal.
|Website=https://netlogoweb.org/launch#https://netlogoweb.org/assets/modelslib/Sample%20Models/Chemistry%20&%20Physics/Materials%20Science/Solid%20Diffusion.nlogo
}}

* https://upload.wikimedia.org/wikipedia/commons/4/40/Vacancy_diffusion.gif

{{#widget:iframe
|url=https://netlogoweb.org/launch#https://netlogoweb.org/assets/modelslib/Sample%20Models/Chemistry%20&%20Physics/Materials%20Science/Solid%20Diffusion.nlogo
|width=800
|height=800
}}

== Как устроена модель ==
Есть два типа атомов: зеленые и синие. Вначале все зеленые атомы находятся слева, а синие атомы — справа. Все вакантные точки расположены между двумя металлами. Когда атомы перемещаются в вакансии, вакансии рассеиваются. В большинстве реальных сценариев вакансии изначально разбросаны по материалу. В этой модели в целях упрощения мы предполагаем, что вначале в материалах нет вакансий и что все вакансии возникают между двумя материалами.

В этой модели мы также предполагаем, что тепло равномерно распределяется по металлам. Следовательно, каждый атом имеет равные шансы разорвать связи с соседями и перейти на вакантное место.