Properties of Hard Carbon Coatings Manufactured on Magnesium Alloys by PACVD Method

Gołąbczak, M.

doi:10.5772/10351

Cited by 5 publications

(33 citation statements)

References 4 publications

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“…To determine the optimum conditions of PACVD process, series of tests have been realized according to the fractional experiment 2 n-1 type (Golabczak, 2005). The studies of material properties of carbon coatings deposited on AZ31 magnesium alloy have comprised identification of these coatings, measurement of their nanohardness and thickness and determination of their geometrical microstructure of surface.…”

Section: Resultsmentioning

confidence: 99%

“…Taking into consideration physical processes used in these techniques we can classify seven main methods of manufacturing of protective and decorative coatings on magnesium alloys, which have been presented in figure 2. These include electrochemical plating, conversion coatings, hydride coatings, anodizing, vapour-phase processes, laser cladding and polymer coatings (Golabczak, 2005). All these methods are characterized by different complexity of used technological processes, costs of realization these processes, degree of environmental nuisance and surroundings, as well as functional properties of manufactured coatings and range of their applications.…”

Section: Methods Of Manufacturing Of Protective Coatings On Magnesiummentioning

confidence: 99%

“…The chemical composition (in wt%) of AZ31 is: 2.83 %Al, 0.8% Zn, 0.37% Mn and 0.002% Cu (Kuc et al, 2008). Carbon coatings have been deposited on this alloy by PACVD method, which has relied on decomposition of methane in electric field with high frequency of 13.56 MHz, obtained at the pressure of approximately 12 Pa in a working chamber (Golabczak, 2005). Processes of PACVD have been realized in the stand presented in figure 3.…”

Section: The Stand For Manufacturing Of Carbon Coatings By Pacvd Methodsmentioning

confidence: 99%

“…Taking into consideration limitation of costly and labour-intensive experiment designs, the planned fractional experiment 2 n-1 type has been accepted, in which number of experiments has been equal to 4 (Golabczak, 2005 …”

Section: Variable Input Quantities Output Quantitiesmentioning

confidence: 99%

“…Electrode potential Input quantities and areas and their range of variables have been determined basing on technological possibilities of test stand for manufacturing of carbon coatings using PACVD method and preliminary investigation results (Golabczak, 2005 Table 3. Investigation conditions and range of variables of input quantities of manufacturing process of carbon coatings using PACVD method…”

Section: Variable Input Quantities Output Quantitiesmentioning

confidence: 99%

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Estimation of Carbon Coatings Manufactured on Magnesium Alloys

Gołąbczak¹

2011

Special Issues on Magnesium Alloys

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Section: Resultsmentioning

confidence: 99%

Section: Methods Of Manufacturing Of Protective Coatings On Magnesiummentioning

confidence: 99%

Section: The Stand For Manufacturing Of Carbon Coatings By Pacvd Methodsmentioning

confidence: 99%

Section: Variable Input Quantities Output Quantitiesmentioning

confidence: 99%

Section: Variable Input Quantities Output Quantitiesmentioning

confidence: 99%

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Estimation of Carbon Coatings Manufactured on Magnesium Alloys

Gołąbczak¹

2011

Special Issues on Magnesium Alloys

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Möglichkeit zur Lebensdauererhöhung von Schleifscheiben: Hier beim Schleifen von Magnesiumlegierungen

Dębkowski

Gołąbczak

Skowron

et al. 2019

Materialwissenschaft Werkst

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The article presents and discusses a new method of grinding of magnesium alloys using conventional ceramic grinding. In this method the conditioning (cleaning) of the cutting surface of grinding wheel during grinding operation is applied. It will be shown that this method significantly increases the durability of cutting properties of grinding wheels. Moreover, the geometrical structure of surface layer of grinded workpieces in 3D configuration is assessed as well as manufactured, diamond like carbon coating on the surface is presented. Schlüsselwörter: Magnesium alloys / grinding / ceramic grinding wheels / surface geometrical structure / conditioning / wear resistant coatings Im Artikel wurde ein neues Verfahren zum Schleifen von Magnesiumlegierungen mit Hilfe von keramischen Schleifscheiben dargestellt. Bei dieser Methode wurde ein neues Verfahren zur Konditionierung der aktiven Oberfläche der Schleifscheibe (Reinigung) angewendet. Es zeigte sich, dass dieses Verfahren die Schnittkapazität von Schleifscheiben um ein Vielfaches erhöht. Zusätzlich wurde die geometrische Struktur der Oberfläche nach dem Schleifen im 3D-System bewertet und die darauf erzeugte diamantähnliche Schicht dargestellt.

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Quantitative Evaluation of the Raman Spectra of Carbon Layers

Gołąbczak

Konstantynowicz

2011

DDF

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The Raman effect has been widely used for years for carbon layers analysis for qualitative analysis of samples as well as quantitative. Two main lines of attitude to the quantitative analysis of the Raman spectra have been de¬ve¬lo¬ped. The first one is applied mainly in forensic investigations when one has pre¬pa¬red comparative samples which consist of known substances with known concentration. This is the ba¬se for comparison of spectra from unknown sample. A tool used in these in¬ves¬ti¬ga¬tions is the Voigt profile based on Faddeeva function, allowing a very precise com¬pa¬rison of spectra with elimination of individuality of me¬a¬s¬u¬re¬ment equipment. This at¬ti¬tu¬de seems not to be the best solution when one has not comparative samples and the sam¬p¬le un¬der test is unique – the situations often meet in scientific investigation. Using Voigt profiles may cause a loss of in¬for¬ma¬tion car¬¬ried with the spec¬trum, especially related with small quantities of nanotubes or ful¬le¬renes generated in the process of imposing diamond layers in plas¬ma arc. Another function for approximation shape of the Raman peak based on Breit-Figner-Fano curve is frequently used but difficulties arise when iden¬ti¬fy¬ing physical meaning of parameters and subtracting idle pedestal from the ex¬pe¬ri¬men¬tal spec¬t¬rum. A different attitude based on simple Gaussian peak approximation is pre¬sen¬ted as better solution. Use of this procedure as a metrological tool has been dis¬cus¬sed leading to the conclusion that engaging more advanced and so¬p¬hi¬s¬ti¬ca¬ted me¬thods does not provide automatically better results.

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Properties of Hard Carbon Coatings Manufactured on Magnesium Alloys by PACVD Method

Cited by 5 publications

References 4 publications

Estimation of Carbon Coatings Manufactured on Magnesium Alloys

Estimation of Carbon Coatings Manufactured on Magnesium Alloys

Möglichkeit zur Lebensdauererhöhung von Schleifscheiben: Hier beim Schleifen von Magnesiumlegierungen

Quantitative Evaluation of the Raman Spectra of Carbon Layers

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