Complex of Devices for Determining the Physical and Mechanical Properties of the Carbon Materials Used in the Rocket and Space Technology by the Impact Indentation Method

Abstract

The results of checking of the physical and mechanical characteristics of carbon materials by the dynamic indentation method are presented. It is shown that the method and the devices created allow one to control the hardness, strength, and elastic modulus of the isotropic pyrolytic graphite and carbon laminates used to manufacture articles for the rocket and space technology.

Molecular dynamics simulation of the amorphous graphite-like membrane deposited on ideal graphite substrate

“…[4][5][6] Microstructural studies of PyG show that PyG graphite layers are stacked oen in a non-ideal ABAB stacking manner, i.e., in a disordered layer stacking in the [001] direction, and thus the general PyG graphite interlayer distance is slightly greater than the layer spacing of 3.4 Å for ideal singlecrystal graphite. 7 PyG preparation conditions, such as temperature and pressure of CVD pyrolysis, ow rates of carbon source gas and substrate selection, have a signicant impact on the microstructure and properties of PyG, thus the preparation of high-quality anisotropic pyrolytic graphite and the study of microscopic kinetic processes have always been the focus of attention. Hareesh et al 8 prepared PyG coatings by CVD method and investigated the effect of pyrolysis temperature on the microstructure, density, oxidation kinetics, and growth and nucleation modes of the deposited PyG.…”

Application of the Dynamic Indentation Method for Evaluation of the Hardness and Elastic Modulus of the Material of Products Obtained by Extrusion Method of Additive Production from Carbon-Filled Composite Materials

“…In recent years, the development of DIM was also aimed at expanding the field of application in relation to nonmetallic materials [11,12]. In particular, the effectiveness of DIM application was established for the control of anisotropic materials [13,14]. However, the study of the properties of materials obtained using different technologies, modes and methods of 3D printing was not yet carried out.…”

Применение Метода Динамического Индентирования Для Оценки Твердости И Модуля Упругости Материала Изделий, Полученных Экструзионным Методом Аддитивного Производства Из Угленаполненных Композитных Материалов

“…В последние годы развитие МДИ было также направлено на расшире ние области применения в отношении неметаллических материалов [11,12]. В том числе была установлена эффективность использования МДИ и при контроле анизотропных материалов [13,14]. Однако исследование свойств материалов, полученных с помощью разных технологий, режимов и способов 3D-печати, пока не проводили.…”