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1

Thermal Resistance and Phase Transitions Studies for Some composite Materials Based on Al_{2}O_{3}

100%

Górski L.

Acta Physica Polonica A

|

1999

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vol. 96

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issue 2

275-281

EN

In this paper the studies of phase transitions in some material compositions based on Al_{2}O_{3} caused by high-temperature processes are presented. These material compositions may be used to high-temperature resistant plasma sprayed coatings. The occurring phase transitions are studied by X-ray diffraction methods. Phase transitions and thermal resistance for studied oxide systems are different. In the coatings from the materials belonging to Al_{2}O_{3}-NiO and Al_{2}O_{3}- ZrO_{2} systems complex phase transitions were observed. More resistant to the conditions of thermal fatigue are coatings containing aluminum titanate Al_{2}TiO_{5} and mullite 3 Al_{2}O_{3}-2 SiO_{2}.

2

Nanocrystalline and Polycrystalline Phases Present in the Protective Metalloceramic Coatings

63%

Górski L., Pawłowski A.

Acta Physica Polonica A

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2002

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vol. 102

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issue 2

295-299

EN

New data about the structure of high-temperature resistant metalloceramic plasma sprayed coatings in micro and nano areas are presented. Application of the new instrumental methods: transmission electron microscopy combined with selected area electron diffraction made it possible to obtain these data. The first layer in Ni based metallic bondcoat shows nanocrystalline structure. External ceramic layer based on stabilised ZrO_2 is polycrystalline and contains both cubic and tetragonal crystalline phases. Local inhomogeneities in coatings phase composition are determined.

3

X-Ray Diffraction and Electron Microscopy Studies on the Structure of Thermal Barrier Coatings

63%

Górski L., Pawłowski A.

|

2012

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vol. 122

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issue 2

405-409

EN

Composites based on Al_2O_3 and ZrO_2 are used. Coatings deposited by plasma spraying technology are studied with the use of X-ray diffraction and electron microscopy combined with electron diffraction methods. Phase transitions and specific coatings layered microstructure with local fluctuations of phase and chemical composition are connected with the conditions of plasma spray process.

4

Investigation of Structure and Conductivity of Superionic Conducting Materials Obtained on the Basis of Silver Iodide

51%

Wiśniewski Z., Górski L., Zasada D.

Acta Physica Polonica A

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2008

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vol. 113

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issue 4

1231-1236

EN

Conductivity and structure of materials belonging to pseudo-binominal group (AgI-Ag_2MoO_4) were investigated. Structure was investigated by X-ray and scanning electron microscopy techniques. It was found that described materials present a variety of internal structures. This type of structures affects conductivity at room temperature, so there is correspondence between conductivity and structure.

5

Structure and Properties of WO3-ZrO2 Gel Composites as Potential Catalysts for Hydrocarbons Isomerization Process

51%

Iller E., Wawszczak D., Górski L.

Archives of Metallurgy and Materials

|

2012

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issue 2

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4 Acta Physica Polonica A

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5 Górski L.

2 Pawłowski A.

1 Iller E.

1 Wawszczak D.

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Thermal Resistance and Phase Transitions Studies for Some composite Materials Based on Al_{2}O_{3}

Nanocrystalline and Polycrystalline Phases Present in the Protective Metalloceramic Coatings

X-Ray Diffraction and Electron Microscopy Studies on the Structure of Thermal Barrier Coatings

Investigation of Structure and Conductivity of Superionic Conducting Materials Obtained on the Basis of Silver Iodide

Structure and Properties of WO3-ZrO2 Gel Composites as Potential Catalysts for Hydrocarbons Isomerization Process