Abstract:
La présente invention concerne le domaine de fabrication de nanoparticules, et a plus particulièrement comme objet un procédé de fabrication de nanoparticules de diamant, ou nanodiamants, par détonation d'au moins une charge explosive, pour lequel ladite au moins une charge explosive est nanostructurée.
Abstract:
A method for promoting chemical changes in a medium comprising the steps of placing a medium within an electromagnetically resonant structure that permits initiating a spark or a discharge in the medium by means of applying pulsed microwave energy in an electromagnetically resonant structure, the electromagnetically resonant structure being simultaneously mechanically resonant for acoustic or shock waves generated by the spark or discharge caused by the pulsed resonant microwave electromagnetic field; and providing a means to feed material into a reaction chamber within the electromagnetically resonant structure and collecting products of a reaction inside the reaction chamber.
Abstract:
The present invention provides a method and formulation for the creation of a diamond-carbon bearing material of varying particle sizes. The material is a detonation by-product of explosive formulations that employ carbon dioxide as the oxidizing agent and a material, such as powdered magnesium, as the fuel for such detonation.
Abstract:
A method of processing a substance, such as food or cosmetic is disclosed. The method comprises the application of an effective amount of shock waves to the substance, so as to reduce or eliminate an allergenic activity of the substance.
Abstract:
The invention relates to the production of artificial carbon-based materials, in particular to the production and purification of ultra-dispersed synthetic diamonds and can be used for extracting diamond-containing materials from the products of a detonation synthesis. The inventive method involves the detonation transformation of explosive material having a negative oxygen balance in the closed space of a blasting chamber in a nonoxidizing atmosphere, the evacuation of explosion products and the heat chemical purification thereof by a mineral acid followed by washing of impurities therefrom. The condensed detonation products are additionally exposed to the action of a shock wave, the chemical purification is carried out with a nitrogen acid aqueous solution in three stages: in the first stage, in periodic mode at a temperature ranging from 20 to 60 DEG C during the time of 0.5 to 5 hours; in the second stage, in continuous mode and in five temperature zones at a temperature ranging from 110 to 300 DEG C during the time of 20 to 120 minutes; and in the third stage, in periodic mode at a temperature ranging from 20 to 80 DEG C during the time of 0.5 to 5 hours with the additional blowing of a reaction mass by an oxygen-containing gas mixture. The additional action of the shock wave on the condensed products is carried out repeatedly from 1 to 50 times at intervals ranging from 5 to 20 minutes, the pressure of a front shock being specified within the range of 0.4 to 15.0 MPa.
Abstract:
Ein Verbundkörper besteht aus mehreren Schichten unterschiedlicher Materialien, welche miteinander verschweißt und gleichzeitig konsolidiert werden sollen. Das Verfahren besteht darin, die Dichten und Elastizitätsmodule der verschiedenen Schichten durch die Zusammensetzung, die Form, den Zustand und die Temperatur so anzupassen, daß die Schallgeschwindigkeit während der Durchdringung des Verbundkörpers erheblich verändert wird. Eine Stoßwelle wird somit auf einer oder beiden Seiten angewendet. Diese Stoßwelle gliedert sich in harmonische Schwingungen auf, die sich summieren können, wodurch eine Energiekonzentration an den jeweiligen Grenzflächen entsteht und die Verbindung in und zwischen den Schichten sichergestellt wird.
Abstract:
The invention relates to a method for the production of diamond-like material, whereby a mixture of carbon, oxygen, hydrogen, nitrogen and non-flammable adjuncts are subjected to a detonative reaction of explosives with a negative oxygen balance in a closed volume in inert gas atmospheres. The reaction products are cooled and purified and sintered at pressures of 4 to 12 Gpa and temperatures of 1000 DEG C to 3000 DEG C. A diamond-like polycrystalline material is thus obtained, suitable, amongst other things, for surface working, for purification of fluids and for absorption of radio frequencies.
Abstract:
Disclosed is a device for pulsed compression of gas, comprising a housing (1) covering a cylindrical chamber (2) parted into two cavities (3, 4) by a free piston (5) located inside said chamber (2) and designed to move back and forth. The inventive device also comprises openings for air impingement (6, 7) provided on the sidewall of the chamber (2), as well as the main gas distributor (10), which resembles a slotted valve.
Abstract:
A method of obtaining diamond and/or diamond-like modifications of boron nitride from carbon and/or boron nitride as initial material with the use of explosion energy, that energy being produced by detonation of a charge containing an explosive substance and the initial material.