Остаточные напряжения при пайке металлокерамических гермовводов

Скорочена інформація про документ
dc.contributor.authorЛабарткава, А. В.
dc.contributor.authorLabartkava, Oleksandr V.
dc.date.accessioned2021-04-29T10:23:45Z
dc.date.available2021-04-29T10:23:45Z
dc.date.issued2015
dc.descriptionЛабарткава, А. В. Остаточные напряжения при пайке металлокерамических гермовводов = Residual stress when brazing мetal-ceraмic pressure seals / А. В. Лабарткава // Зб. наук. пр. НУК. – Миколаїв : НУК, 2015. – № 3 (459). – С. 53–58.uk_UA
dc.description.abstractВизначено вплив термодеформацiйних процесiв на залишковий напружено-деформований стан при паяннi металокерамiчних гермовводiв.uk_UA
dc.description.abstract1The stress-strain state arising at brazing metal-ceramic pressure seals has been analyzed. With the use of computer modeling, the levels of residual stresses at various temperatures during cooling were studied. It was found that the main role in the formation of the stress-strain state of the unit is played by the difference in Thermal Coefficient of Linear Expansion (TCLE) of brazed materials, i.e., temperature deformations. Analysis of the tensile stress diagrams showed that they appear on the forming surfaces near the junction with the current lead. As they are getting away from it, they increase at first and then decrease, reaching a maximum at about 2 and 1 mm from the junction on the outer and inner surfaces respectively. It was established that transient plastic deformations develop at temperatures ranging from 900 to 400 °C because of the large difference in TCLE of ceramics and Kovar and low Kovar yield strength in this range. The modeling results showed that the character of the tensile stress fields in ceramics and their change during cooling is not very different, both in the calculation considering only the transient plastic deformations and the compression pressure of 5 MPa and the calculation based on transient plastic deformations and creep deformations at slow cooling with the compression pressure of 5 MPa. The creep deformation developing in the process of slow cooling has little influence on the nature and size of the stresses and strains appearing in the unit.uk_UA
dc.description.abstract2Определено влияние термодеформационных процессов на остаточное напряженно-деформированное состояние при пайке металлокерамических гермовводов.uk_UA
dc.identifier.issn2311-3405 (Print)
dc.identifier.issn2313-0415 (Online)ru
dc.identifier.urihttps://eir.nuos.edu.ua/handle/123456789/4006
dc.language.isoruuk_UA
dc.relation.ispartofseries621.791uk_UA
dc.subjectгермовводuk_UA
dc.subjectразнородные материалыuk_UA
dc.subjectнапряженно-деформированное состояниеuk_UA
dc.subjectтермодеформационные процессыuk_UA
dc.subjectгермовводuk_UA
dc.subjectрiзнорiднi матерiалиuk_UA
dc.subjectнапружено-деформований станuk_UA
dc.subjectтермодеформацiйнi процесиuk_UA
dc.subjectpressure sealuk_UA
dc.subjectdissimilar materialsuk_UA
dc.subjectstress-strain stateuk_UA
dc.subjectthermodeformation processesuk_UA
dc.titleОстаточные напряжения при пайке металлокерамических гермовводовuk_UA
dc.title1Residual stress when brazing мetal-ceraмic pressure sealsuk_UA
dc.title22015
dc.typeArticleuk_UA

Файли

Контейнер файлів
Зараз показуємо 1 - 1 з 1
Ескіз
Назва:
Labartkava.pdf
Розмір:
482.07 KB
Формат:
Adobe Portable Document Format
Опис:
статья
Завантажити
Ліцензійна угода
Зараз показуємо 1 - 1 з 1
Ескіз недоступний
Назва:
license.txt
Розмір:
7.05 KB
Формат:
Item-specific license agreed upon to submission
Опис:
Завантажити

Зібрання

№ 3 (459) 2015