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1

Characteristics of ZnO thin films deposited by atomic layer deposition

Boryło P., Lukaszkowicz K., Szindler M., Basiaga M.

Journal of Achievements in Materials and Manufacturing Engineering

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2015

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Vol. 73, nr 2

86--91

EN

Purpose:The aim of this article was to examine the adhesion of ZnO thin films and the influence of temperature deposition process on their morphology. ZnO thin films have been deposited by atomic layer deposition. Design/methodology/approach: Adhesion of ZnO thin films was investigated using the scratch test method. Changes in the surface morphology were observed by scanning electron microscope (SEM). In order to confirm the chemical composition and phase investigated of thin films was carried out Energy-dispersive X-ray spectroscopy EDS and X-ray analysis. Findings: Results and their analysis have shown that the ZnO thin films deposited by ALD are uniform and homogenous. Significant impact on their morphology has the temperature of the deposition process. In the case of the adhesion temperature is negligible. Practical implications: Knowledge about the ALD ZnO thin films are possibility to obtaining a uniform thin films show that material has a big potential in optoelectronics and photovoltaic application. Originality/value: The article presents the original research results of the structure and properties of ZnO thin films deposited by ALD method, that can replace a commonly used transparent conductive layer.

2

Qualitative and numerical analysis of chemical composition of selected iron alloys technique wave dispersive spectrometry (WDS) by calibration curves

Pawlyta M., Krzysteczko J., Nieradka B.

Journal of Achievements in Materials and Manufacturing Engineering

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2014

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Vol. 66, nr 1

20--30

EN

Purpose: Purpose of the dissertation was accomplish qualitative and quantitative analysis of chemical composition of selected iron alloys using wavelength-dispersive spectroscopy (WDS) by calibration curve method. In this dissertation information about X-ray microanalysis physical basis and about X-ray detection in scanning electron microscope were presented. Design/methodology/approach: Research was execute on scanning electron microscope, on the X-ray diffraction instrument, on energy and wavelength-dispersive spectrometer. Carbon content and confidence interval at unknown steel sample were determined. Findings: Method of calibration curves allowed the designation of the carbon content of the steel samples of unknown chemical composition, depending on a reflection intensities derived from coal. Performed tests have confirmed the possibility of using this method, even in case of depositing the carbon layer. Originality/value: The paper presents qualitative and numerical analysis of chemical composition of selected iron alloys technique wave dispersive spectrometry (WDS) by calibration curves. Carbon content and confidence interval at unknown steel sample were determined.

3

Badania struktury stopów na bazie magnezu i litu o strukturze dwufazowej α-β i jednofazowej β

Białobrzeski A., Lech-Grega M., Żelechowski J.

Prace Instytutu Odlewnictwa

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2010

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T. 50, z. 1

17-28

PL

W pracy przedstawiono wyniki badań ultralekkich stopów magnezu i litu o strukturze dwufazowej α-β i jednofazowej β z zastosowaniem skaningowej mikroskopii elektronowej z analizą chemiczną w mikroobszarach (SEM + EDX - Philips XL30 + EDAX) i rentgenowskiej analizy fazowej (XRD - dyfraktometr rentgenowski D8 Advance, Bruker). Refleksy dyfrakcyjne zinterpretowano na podstawie katalogu PDF-2. Stwierdzono, że dodatek pierwiastków stopowych, takich jak wapń czy aluminium wyraźnie zmienia strukturę stopu jednofazowego Mg-Li α bądź β. Dodatek wapnia w odlewanym stopie podwójnym Mg-Li-Ca powoduje powstanie struktury dwufazowej składającej się z dendrytów fazy β oraz płytkowej eutektyki CaMg2 i prawdopodobnie fazy α. Dodatek aluminium w odlewanym stopie podwójnym Mg-Li-AI powoduje powstanie materiału dwufazowego α i β. Stop Mg-18,4%Li-1,2%Zn jest stopem jednofazowym β z cynkiem rozpuszczonym w osnowie.

EN

The study presents the results of examinations carried out on ultra-light magnesium- and lithium- based alloys of two-phase α-β structure and monophase β structure using scanning electron microscopy with chemical analysis in microregions (SEM + EDX - Philips XL30 + EDAX) and X-ray phase analysis (XRD - X-ray diffractometer model D8 Advance, Bruker). The diffraction reflexes were interpreted from a PDF-2 catalogue. It was observed that the addition of alloying elements (calcium or aluminium) definitely changes the structure of monophase Mg-Li α or β alloys. Calcium addition to a cast binary Mg-Li-Ca alloy results in the formation of two-phase structure composed of β phase dendrites, lamellar CaMg2 eutectic, and probably α phase. The addition of aluminium to a cast binary alloy from the Mg-Li-AI system results in the formation of a two-phase α and β system. The Mg-18,4%Li-1,2%Zn alloy is a monophase β structure material with zinc dissolved in alloy matrix.

4

A Low-Cost Temperature Attachment for in-situ Measurements in the X-ray Diffractometer

Kucharska B., Nitkiewicz Z.

Inżynieria Materiałowa

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2008

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Vol. 29, nr 6

1072-1075

EN

The paper presents the design of a temperature attachment for in-situ measurements to be used in the Seifert 3003TT X-ray diffractometer owned by the Institute of Materials Engineering at the Czestochowa University of Technology, but being also able to be adapted to other types of diffractometers. The schematic diagram of the device, its temperature characteristics and the method of mounting it in the diffractometer chamber are also provided. The temperature attachment enables measurements to be performed on specimens of a maximal size of ?30×6.6 mm within a max temperature troom 350oC. Examples of application of the device for the measurement of thermal expansion and stress relaxation in ground copper and the allotropic change of sulphur are given. Both the price advantage of the device and the wide possibilities of using it for the examination of bulky specimens constitute an advantageous alternative to expensive, specialized equipment most often designed for the examination of specimens of much more reduced sizes.

PL

W pracy przedstawiono projekt przystawki temperaturowej do pomiarów inwitu w dyfraktometrze rentgenowskim Seifert 3003TT będącego na wyposażeniu Instytutu Inżynierii Materiałowej w Politechnice Częstochowskiej, ale mogącego być dostosowanym do innego typu dyfraktometrów. Przedstawiono schemat urządzenia, jego temperaturową charakterystykę oraz sposób montażu w komorze dyfraktometru. Przystawka temperaturowa pozwala wykonywać pomiary na próbkach o maksymalnej wielkości ?30×6,6 mm w temperaturze tpok 350oC. Podano przykładowe zastosowania urządzenia dla pomiaru rozszerzalności cieplnej i relaksacji naprężeń w szlifowanej miedzi oraz przemiany alotropowej siarki. Walory cenowe jak i szerokie możliwości wykorzystania urządzenia do badania próbek masywnych stanowią korzystną alternatywę dla drogich, wyspecjalizowanych urządzeń przystosowanych najczęściej do badania próbek o znacznie ograniczonych rozmiarach.

5

Physical and structural characterization of mismatched welded joints by dynamic fracture toughness test.

Ranatowski E., Sadowski J.

Inżynieria Materiałowa

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2001

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R. XXII, nr 5

753-756

EN

An assessment of dynamic fracture parameters such as KId, JId, total failure energy K and their parts Kz, Kr for the experimented conventional and pre-cracked specimens tested by dynamic fracture test were made. The additional investigations by X-ray diffractometer and scanning electron microscope were made to reveal the structural sources of scatter of the results in the Charpy test.

PL

Wykonano ocenę dynamicznych parametrów procesu pękania, takich jak KId, JId, energię zniszczenia K oraz jej składowe Kz, Kr poprzez dynamiczne badania konwencjonalnych próbek oraz z karbem zakończonym pęknięciem. Ponadto wykonano dodatkowe badania na dyfraktometrze rentgenowskim oraz mikroskopie skaningowym w celu ujawnienia strukturalnych źródeł rozrzutu badań obserwowanych w próbce Charpy V.