inż. Cezary Dziekoński

Zakład Teorii Ośrodków Ciągłych i Nanostruktur (ZTOCiN)
Pracownia Fizyki Polimerów (PFP)
stanowisko: laborant
telefon: (+48) 22 826 12 81 wew.: 107
pokój: 237
e-mail: cdziekon

Ostatnie publikacje
1.Dziekoński C., Dera W., Jarząbek D.M., Method for lateral force calibration in atomic force microscope using MEMS microforce sensor, ULTRAMICROSCOPY, ISSN: 0304-3991, DOI: 10.1016/j.ultramic.2017.06.012, Vol.182, pp.1-9, 2017

Streszczenie:

In this paper we present a simple and direct method for the lateral force calibration constant determination. Our procedure does not require any knowledge about material or geometrical parameters of an investigated cantilever. We apply a commercially available microforce sensor with advanced electronics for direct measurement of the friction force applied by the cantilever's tip to a flat surface of the microforce sensor measuring beam. Due to the third law of dynamics, the friction force of the equal value tilts the AFM cantilever. Therefore, torsional (lateral force) signal is compared with the signal from the microforce sensor and the lateral force calibration constant is determined. The method is easy to perform and could be widely used for the lateral force calibration constant determination in many types of atomic force microscopes.

Słowa kluczowe:

A precise and direct method for lateral force calibration, Inaccuracy equal to approximately 2%, Wedge method is proven to give inaccurate results

Afiliacje autorów:

Dziekoński C.-IPPT PAN
Dera W.-IPPT PAN
Jarząbek D.M.-IPPT PAN
50p.
2.Jarząbek D.M., Milczarek M., Wojciechowski T., Dziekoński C., Chmielewski M., The effect of metal coatings on the interfacial bonding strength of ceramics to copper in sintered Cu-SiC composites, CERAMICS INTERNATIONAL, ISSN: 0272-8842, DOI: 10.1016/j.ceramint.2017.01.056, pp.1-9, 2017

Streszczenie:

Cu-SiC composites are very promising materials which have high thermal and electrical conductivity and may find many applications. Unfortunately, the main disadvantage of these materials is the dissolution of silicon in copper at elevated temperature, which significantly reduces their properties. In order to overcome this problem particles can be coated with a protective material before sintering. In this paper– the influence of three different metallic coatings on bonding strength were investigated. SiC particles were coated with tungsten, chromium or titanium. As reference a material with uncoated particles was prepared. The experiments were carried out with the use of microtensile tester. The highest increase in strength was observed in the case of chromium coating. On the other hand, the titanium coating, which was of very poor quality, decrease the bonding strength in comparison with uncoated particles. Furthermore, scanning electron and optical microscopes were used to determine the mechanism of debonding.

Słowa kluczowe:

Interfacial bonding strength, Metal matrix composites, Tensile strength, Silicon carbide particles

Afiliacje autorów:

Jarząbek D.M.-IPPT PAN
Milczarek M.-Warsaw University of Technology (PL)
Wojciechowski T.-Institute of Physics, Polish Academy of Sciences (PL)
Dziekoński C.-IPPT PAN
Chmielewski M.-Institute of Electronic Materials Technology (PL)
40p.
3.Kujawska T., Dera W., Dziekoński C., Automated bimodal ultrasound device for preclinical testing of HIFU technique in treatment of solid tumors implanted into small animals , HYDROACOUSTICS, ISSN: 1642-1817, Vol.20, pp.93-98, 2017

Streszczenie:

In Poland cancer is the second cause of death overall, and the first before 65. Demand for new anticancer therapies is increasing every year. The main objective of studies on medical and technical aspects of new anticancer methods is to reduce unwanted side effects and costs associated with conventional methods of treatment. Percutaneous (noninvasive) HIFU (High Intensity Focused Ultrasound) technique gives the chance to radically reduce both of these factors. The main goal of this work is automation of HIFU technology for producing thermal damage to the entire volume of a solid breast tumor implanted into a rat mammary gland using the proposed bi-modal ultrasound equipment, enabling the ultrasonic heating of a small volume within the tumor under the ultrasonic imaging control, as well as 3D scanning of the heating beam focus throughout the entire tumor volume. Design of the proposed equipment includes the heating probe of low frequency (about 1MHz), allowing penetration of pulsed focused waves into tissues, and the linear phased array probe of high frequency (from 4 MHz to 10 MHz), allowing visualization of the locally heated area inside the tumor in real time. Automatic 3D scanning of the heating beam focus provides the thermal damage to its entire volume.

Słowa kluczowe:

High Intensity Focused Ultrasound beam, focal volume, tissue damage

Afiliacje autorów:

Kujawska T.-IPPT PAN
Dera W.-IPPT PAN
Dziekoński C.-IPPT PAN
6p.

Abstrakty konferencyjne
1.Dera W., Dziekoński C., Jarząbek D.M., Method for lateral force calibration in atomic force microscope using MEMS microforce sensor. , 8TH International Colloquium Micro-Tribology, 2017-09-11/09-13, Warszawa (PL), pp.1, 2017
2.Frąś L.J., Dziekoński C., Dera W., Jarząbek D.M., The anisotrophy of viscosity of magnetorheological fluid., 8TH International Colloquium Micro-Tribology, 2017-09-11/09-13, Warszawa (PL), pp.1, 2017
3.Jarząbek D.M., Dziekoński C., Chmielewski M., Measurement of adhesion between ceramics and copper in sintered Cu-SiC composites., 8TH International Colloquium Micro-Tribology, 2017-09-11/09-13, Warszawa (PL), pp.1, 2017
4.Dera W., Dziekoński C., Jarząbek D.M., Lateral force calibration in atomic force microscope using MEMS microforce sensor, EUROMAT 2017 , European Congress and Exhibition on Advanced Materials and Processes, 2017-09-17/09-22, Thessaloniki (GR), pp.1, 2017
5.Dziekoński C., Jarząbek D.M., Dera W., Influence of mode of electrodeposition, grain size on mechanical propertice of electrodeposited nanocrystaline nickel coatings., EUROMAT 2017 , European Congress and Exhibition on Advanced Materials and Processes, 2017-09-17/09-22, Thessaloniki (GR), pp.38-38, 2017
6.Jarząbek D.M., Dziekoński C., Chmielewski M., Effect of metal coatings on the interfacial bonding strength of ceramics to copper in sintered Cu-SiC composites., EUROMAT 2017 , European Congress and Exhibition on Advanced Materials and Processes, 2017-09-17/09-22, Thessaloniki (GR), pp.17-17, 2017
7.Frąś L.J., Jarząbek D., Dziekoński C., Pęcherski R.B., Viscoplastic deformation of magnethoreological solids, SolMech 2016, 40th Solid Mechanics Conference, 2016-08-29/09-02, Warszawa (PL), No.P244, pp.1-2, 2016

Streszczenie:

The microsized (~10µm) ferroelements build the structure of magenthoreological (MR) fluid. This two phase material in neutral state behaves as a fluid but in magnetic field becomes a solid and has properties of elasto-viscoplastic material. This is due to the skeleton made by ferrolements connected into braids. The aim of the paper is to identify the physical mechanisms of deformation of such a structure with use of own set up for in situ microscopic observations.

Słowa kluczowe:

magnethoreological solids, viscoplasticity, ferroelements, compression test, shear banding

Afiliacje autorów:

Frąś L.J.-IPPT PAN
Jarząbek D.-IPPT PAN
Dziekoński C.-IPPT PAN
Pęcherski R.B.-IPPT PAN
8.Dera W., Dziekoński C., Jarząbek D.M., The measurement of viscosity of thin polymer films, SolMech 2016, 40th Solid Mechanics Conference, 2016-08-29/09-02, Warszawa (PL), pp.1, 2016
9.Dziekoński C., Dera W., Frąś L., Jarząbek D.M., Precise force sensors for micro and nanotensile tests., SOLMECH 2016, 40th Solid Mechanics Conference, 2016-08-29/10-02, Warszawa (PL), pp.1, 2016

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pdf
422789
2017-09-08
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Kujawska T., Dera W., Dziekoński C.
Bimodalne urządzenie ultradźwiękowe do nieinwazyjnego niszczenia litych guzów nowotworowych u małych zwierząt
PL, Instytut Podstawowych Problemów Techniki PAN
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419669
2016-12-14
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Dera W., Dziekoński C., Jarząbek D.
Metoda kalibracji siły bocznej w mikroskopie AFM i urządzenie do kalibracji siły bocznej w mikroskopie AFM.
PL, Instytut Podstawowych Problemów Techniki PAN
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419571
2016-11-23
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Jarząbek D., Dera W., Dziekoński C.
Urządzenie do pomiaru lepkości cienkich warstw materiałów lepkosprężystych
PL, Instytut Podstawowych Problemów Techniki PAN
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