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1

Effect of High Energy Ball Milling on the Structure and Phase Decomposition of the Multiferroic Bi₅Ti₃FeO₁₅ Ceramics

100%

Dercz J., Zubko M., Dercz G., Matuła I.

Acta Physica Polonica A

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2016

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vol. 130

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issue 4

852-855

EN

The paper presents the results of the Bi₅Ti₃FeO₁₅ multiferroic phase stability analysis during high-energy ball milling aimed at obtaining fine dispersion ceramic powder. The X-ray diffraction and transmission electron microscopy methods were used to analyse the structure and verify the degree of crystallite dispersion. Structural data analysis was carried out using the Rietveld method. To carry out the analysis of the morphology, the scanning electron microscopy was used. The results that were obtained showed that the high energy ball milling process results in the decomposition of the initial ceramics, where finally Bi₅Ti₃FeO₁₅ and Bi are obtained. An increase in the proportion of the amorphous phase and an increase in the dispersion of the grains and crystallites of the powder that occurs with an increase in the milling time were observed.

2

Structure Characterization of Biomedical Ti-Mo-Sn Alloy Prepared by Mechanical Alloying Method

100%

Dercz G., Matuła I., Zubko M., Liberska A.

Acta Physica Polonica A

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2016

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vol. 130

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issue 4

1029-1032

EN

The study presents the results of the influence of high energy milling on the structure of the new Ti-15Mo-5Sn [wt%] alloy for biomedical applications. During testing the powders were milled for the following milling times: 5, 15, 30, and 45 h. The milled powders were characterized by X-ray diffraction, scanning and transmission electron microscopy methods. Observation of the powder morphology after various stages of milling leads to the conclusion that with the increase of the milling time the size of the powder particles as well as the degree of aggregation change. However, a clear tendency of particles reduction at every stage of the mechanical alloying process is clearly observed. The X-ray diffraction results confirmed the presence of the α and β phases, and molybdenum. It has been found that the reflections from the Sn phase disappeared after five hours of milling, suggesting that the Sn and Ti alloying took place, leading to the creation of a titanium-based solid solution. After 30 and 45 h of mechanical alloying the formation of the β-Ti phase, the final share of which is 46(4) wt%, was observed. Furthermore, it was found that a diffraction line broadening with the increase of the milling time results from reduction of the crystallite size and an increase in the lattice distortion. The maximum level of the reduction of the crystallite size was obtained after 45 h of milling. The maximum degree of the unit cells reduction for all phases present in the powder that was being milled was also observed for this milling time.

3

Microstructure Evolution of TI/ZRO2 and TI/AL2O3 Composites Prepared by Powder Metallurgy Method

100%

Dercz G., Matuła I., Gurdziel W., Kuczera N.

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issue 2

4

Influence of High Energy Milling Time on the Ti-50Ta Biomedical Alloy Structure

88%

Matuła I., Dercz G., Zubko M., Prusik K., Pająk L.

Acta Physica Polonica A

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2016

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vol. 130

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issue 4

1033-1036

EN

Nickel-free titanium alloys are a promising research direction in the field of biomedical materials. Current literature reports indicate that there is a possibility of using the Ti-Ta alloys in medicine since these alloys have had satisfactory results as far as biocompatibility, resistance to corrosion and mechanical properties are concerned, which is an important aspect while considering the use of this alloy for long-lasting bone implants. This article presents the results of a high-energy milling process with the use of Ti and Ta powders. The ball-milling process was carried out for various times, including 20, 40, 60, 80, and 100 h. The samples were characterized by X-ray diffraction, scanning electron microscopy, and transmission electron microscopy. The research confirmed partial synthesis of the materials during the process of high energy ball milling.

5

Phase Composition of Urban Soils by X-Ray Diffraction and Mössbauer Spectroscopy Analysis

88%

Kierlik P., Hanc-Kuczkowska A., Męczyński R., Matuła I., Dercz G.

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issue 3

6

Microstructure and Properties of YSZ Coatings Prepared by Plasma Spray Physical Vapor Deposition for Biomedical Application

76%

Barczyk J., Dercz G., Matuła I., Góral M., Maszybrocka J., Bochenek D., Gurdziel W.

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issue 2

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3 Acta Physica Polonica A

3 Archives of Metallurgy and Materials

3 2019

3 2016

6 Dercz G.

6 Matuła I.

3 Zubko M.

2 Gurdziel W.

1 Barczyk J.

1 Bochenek D.

1 Dercz J.

1 Góral M.

1 Hanc-Kuczkowska A.

1 Kierlik P.

1 Kuczera N.

1 Liberska A.

1 Maszybrocka J.

1 Męczyński R.

1 Pająk L.

1 Prusik K.

Effect of High Energy Ball Milling on the Structure and Phase Decomposition of the Multiferroic Bi₅Ti₃FeO₁₅ Ceramics

Structure Characterization of Biomedical Ti-Mo-Sn Alloy Prepared by Mechanical Alloying Method

Microstructure Evolution of TI/ZRO2 and TI/AL2O3 Composites Prepared by Powder Metallurgy Method

Influence of High Energy Milling Time on the Ti-50Ta Biomedical Alloy Structure

Phase Composition of Urban Soils by X-Ray Diffraction and Mössbauer Spectroscopy Analysis

Microstructure and Properties of YSZ Coatings Prepared by Plasma Spray Physical Vapor Deposition for Biomedical Application