Galkin Donetsk Institute for Physics and Engineering

Copper welding electrodes with heightened service durability

Donetsk Institute for Physics and Engineering named after O.O.Galkin NAS of Ukraine and Scientific Production Company “Elma” have performed full-scale testing of copper electrodes for point welding. The billets of electrodes were obtained with the use of the technology of severe plastic deformation (SPD).
The results of the tests established that made of the copper Cu-ETP and strengthened by SPD up to the strength of 125HV, the electrodes demonstrated the durability 2-3 times higher than the durability of copper electrodes produced by traditional technology and 1.3-1.5 times higher of that made of CuCr Alloy. The data were obtained in the course of electrode operation at multiple-point equipment MTM 289.
SPD technology provides obtaining of strengthened billets of electrodes of varied profile. At the same time, saving in material can reach 40%.
The institute has the opportunity to produce limited batches of electrodes.
Electrode billet size: the maximum diameter of the circumscribing circle is 50 mm, the maximum length is 500 mm. The increase in the strength of the cooper billets up to 140HV is possible.

Production a High-Strength and High-Conductivity Copper Wire by using Equal-Channel Angular Hydroextrusion Method

High-Strength and High-Conductivity Copper Wire with record set of physical and mechanical properties has been obtained at Donetsk Institute for Physics and Engineering NAS of Ukraine. The combined SPD treatment including equal channel angular hydroextrusion, direct hydroextrusion and drawing provided for fire refined tough pitch copper (Cu-FRTP: 99.95%) the ultimate tensile strength UTS=686 MPa and the electrical conductivity (EC) at a level of 86.4% IACS in the wire 0.5mm in diameter. For oxygen-free copper (Cu-OF: 99.98%) wire, UTS=576 MPa, EC=96.7% IACS have been reached.

Nanostructural functional materials with enhanced complex of properties

The unique technologies of processing of copper based composites (Cu-Cu, Cu-Fe, Cu-NbTi) have been developed at Donetsk Institute for Physics and Engineering named after O.O.Galkin of National Academy of Sciences of Ukraine. The technologies allow an increase in the strengths, coercitivity (Cu-Fe) and critical current density (Cu-NbTi) by a factor of 10 with holding high plasticity and electroconductivity unchanged. The institute offers co-operation in the matter of application of the mentioned materials and technologies in your enterprise.

A unique technology of solid-phase processing of polymers and polymer composites has been developed at Donetsk Institute for Physics and Engineering named after A.A. Galkin NAS of Ukraine. The technology raises 2-5-fold their rigidity, strength and hardness with conserved plasticity and low anisotropy of the properties. The articles made of such materials possess enhanced operating characteristics, their reliability and service life rises, the work under higher loading becomes possible. The institute offers cooperation on the use of the mentioned materials at your enterprise.

The МК6 Urofloumeter records and charts a patient’s pattern of urinary volume and flow. The МК6 system helps physicians in real time assess the mechanics of flow and diagnose abnormalities in voiding patterns (obstructed or restricted flow). The values are displayed, as well as charted, by the computer. The МК6 Uroflowmeter features a high-performance microprocessor and the digital scale (used as the flow sensor) designed to streamline diagnostic uroflow  recording.

The device is designed and suitable for transformation of an analog signal of a thermal couple and to digital signal to be transmitted by USB interface connected with diffractometers DRON1-3.

A customized USB multimeter BG11 is designed for scientific research. The device is equipped by analog differential input, two digital inputs. The measurement of voltage, current, frequency, impulse count is provided. The sensors to be installed are: tensor bridge, pressure sensor, thermal couple, differential thermal couple, optical sensor of displacement BS718 (0,001 mm), diffractometer DRON, derivatograph Q1500 and other research equipment. Input sensibility is 1 mV. Sampling frequency: 2-25000 Hz. Memory: 1 million of measuring series. Interface: USB 2.0. Program package RTViewer.

The device is an eight-channel controller of a personal computer (PC) that provides ongoing monitoring of variations of the magnetic field (MF) distribution in restricted space. The characteristic time scale is t>=0,2 sec. The MF sensors are based on yttrium iron garnet epitaxial films. The sensibility of the sensors is characterized by the minimum variation of the magnetic induction 10^-7 T. When a source of weak magnetic field is moving inside the controlled area, the position is visualized on the PC monitor. The device is not sensible to the motion of electrically conductive nonmagnetic objects. The device can be applied to the studies in the area of solid state physics under extreme conditions and to extension of operating abilities of standard metal detectors of custom control.

A complete set is intended for research of characteristics of photosensitive materials and wares in the range of the 3.0-300K temperatures in the visible and infra-red region of radiation spectrum both on the stage of development and during certification of the prepared products.

• CRYOSTAT PR
• SMALL CRYOSTAT CT-PR

The set is designed for researches and certification of characteristics of optical materials and devices in the 3.0-300K temperature range in the visible and infra-red spectral regions. The reliable comparative analysis of the characteristics is due to perfect and high vacuum created by a built-in carbon cryosorption pump which prevents formation of deposites on surfaces of ports, samples and mirrors.

• CRYOSTATS SERIES “CRYOSPEC CT”
• CRYOSTATS SERIES “CRYOSPEC CTR”
• CRYOSTATS SERIES CL – CT
• COMPLETE SET OF CRYOGENIG EQUIPMENT FOR OPTICAL RESEARCHES IN THE MAGNETIC FIELD

The helium cryostat is applicated for optical and mossbauer investigations in the temperature range 4,2 – 300 K. Sample cooling is realized by means of heat exchange between working cell and cryogenic reservoir. Temperature regulation and control are made by using the chain consisting of a heater and a temperature sensor. Horizontal windows are setted in the bottom of the cryostat. For mossbauer measurements, the cryostat can be provided with mylar windows. For optical measurements, windows are made from a transparent to necessary wavelength material.

The nitrogen cryostat is applicated for optical and mossbauer investigations in the long no nitrogen refill regime. Sample cooling is realized by means of heat exchange between working cell and cryogenic reservoir. Temperature regulation and control are made by using the chain consisting of a heater and a temperature sensor. Horizontal windows are setted in the bottom of the cryostat. For mossbauer measurements, the cryostat can be provided with mylar windows. For optical measurements, windows are made from a transparent to necessary wavelength material.

Automatized high pressure set-up is intended for complex research of the high hydrostatic pressure and temperature influence on the elastic and optical parameters of solids, liquids and viscous plastic functional materials.

Нigh pressure cell is applicated for resistive measurements on the PPMS maked by “Quantum Design”. HPC is installed in measuring cell by means of rod, which is turned up then. Others HPC modifications having analogous construction (various correlation between external diameter and canal diameter) for pressure from 10 to 20 kbar may be made:

• without platform with special puck for resistive measurements on the others types devices;
• with special coaxial input for NMR investigations;
• with resonator for EPR investigations.

The row of high pressure cell modifications are produced in Dоnetsk Institute for Physics and Engineering:

• HPC for AC measurements on SQUID-magnetometer;
• HPC for DC measurements on SQUID-magnetometer;
• HPC for measurements on vibration magnetometer;
• HPC for DC measurements on PPMS.

OMRON MIT is a compact, fully automated apparatus to measure the arterial pressure at the shoulder artery. The apparatus is connected with the cuff either directly or with a help of a vacuum tube. OMRON MIT quickly and accurately measures pressure and pulse and converts the information into a digital reading on a liquid-crystalline indicator. The apparatus is applied with the function of an artificial intelligence, and measures pressure when air is pumped into the cuff. OMRON MIT can save the latest measure in memory.