Suchergebnisse - "Keune, Katrien"

A review of solvent action on oil paint von Baij, Lambert, Hermans, Joen, Ormsby, Bronwyn, Noble, Petria, Iedema, Piet, Keune, Katrien

“… The science of oil paint cleaning is an interdisciplinary and challenging field of study due to the complex nature of both paintings and cleaning materials …”
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After the paint has dried: a review of testing techniques for studying the mechanical properties of artists’ paint von dePolo, Gwen, Walton, Marc, Keune, Katrien, Shull, Kenneth R.

“… While the chemistry of artists’ paints has previously been studied and reviewed, these studies only capture a portion of the properties affecting the response …”
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Quantifying solvent action in oil paint using portable laser speckle imaging von Baij, Lambert, Buijs, Jesse, Hermans, Joen J., Raven, Laura, Iedema, Piet D., Keune, Katrien, Sprakel, Joris

“… The exposure of oil paintings to organic solvents for varnish removal or to water for the removal of surface dirt can affect the chemical and physical …”
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Reflectance Imaging Spectroscopy (RIS) for Operation Night Watch: Challenges and Achievements of Imaging Rembrandt’s Masterpiece in the Glass Chamber at the Rijksmuseum von Gabrieli, Francesca, Delaney, John K., Erdmann, Robert G., Gonzalez, Victor, van Loon, Annelies, Smulders, Patrick, Berkeveld, Roy, van Langh, Robert, Keune, Katrien

“… Visible and infrared reflectance imaging spectroscopy is one of the several non-invasive techniques used during Operation Night Watch for the study of …”
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Ionomer-like structure in mature oil paint binding media von Hermans, Joen J, Keune, Katrien, van Loon, Annelies, Corkery, Robert W, Iedema, Piet D

“… Infrared spectra of samples from oil paintings often show metal carboxylate bands that are broader and shifted compared to those of crystalline metal soap …”
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Forensic investigation of microtraces on an item of Dutch eighteenth century clothing in the Rijksmuseum collection von Goedhart, Yoram Ray, Keune, Katrien, Meijer, Suzan, van Asten, Arian

“… Most garments in museum collections have belonged to people of high societal status. Clothing of the common people, however, has rarely been preserved. Because …”
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Understanding and optimizing Evolon® CR for varnish removal from oil paintings von Baij, Lambert, Liu, Chun, Buijs, Jesse, Alvarez Martin, Alba, Westert, Dorien, Raven, Laura, Geels, Norbert, Noble, Petria, Sprakel, Joris, Keune, Katrien

“… Evolon ® CR is increasingly used in paintings conservation for varnish removal from oil paintings. Its key benefits over traditional cotton swabs are limiting …”
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Out of the blue: Vermeer’s use of ultramarine in Girl with a Pearl Earring von van Loon, Annelies, Gambardella, Alessa A., Gonzalez, Victor, Cotte, Marine, De Nolf, Wout, Keune, Katrien, Leonhardt, Emilien, de Groot, Suzan, Proaño Gaibor, Art Ness, Vandivere, Abbie

“… Johannes Vermeer (1632–1675) is known for his brilliant blue colours, and his frequent use of the costly natural ultramarine. This paper reveals new findings …”
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Combined Micro- and Macro scale X-ray powder diffraction mapping of degraded Orpiment paint in a 17th century still life painting by Martinus Nellius von Simoen, Jonas, De Meyer, Steven, Vanmeert, Frederik, de Keyser, Nouchka, Avranovich, Ermanno, Van der Snickt, Geert, Van Loon, Annelies, Keune, Katrien, Janssens, Koen

“… The spontaneous chemical alteration of artists’ pigment materials may be caused by several degradation processes. Some of these are well known while others are …”
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Discovery of pararealgar and semi-amorphous pararealgar in Rembrandt's The Night Watch: analytical study and historical contextualization von De Keyser, Nouchka, Broers, Fréderique T. H., Vanmeert, Frederik, van Loon, Annelies, Gabrieli, Francesca, De Meyer, Steven, Gestels, Arthur, Gonzalez, Victor, Hermens, Erma, Noble, Petria, Meirer, Florian, Janssens, Koen, Keune, Katrien

“… This article reports on the discovery of pararealgar and semi-amorphous pararealgar in Rembrandt's masterpiece The Night Watch . A large-scale research project …”
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Solvent-mediated extraction of fatty acids in bilayer oil paint models: a comparative analysis of solvent application methods von Baij, Lambert, Astefanei, Alina, Hermans, Joen, Brinkhuis, Francine, Groenewegen, Heleen, Chassouant, Louise, Johansson, Sofia, Corthals, Garry, Tokarski, Caroline, Iedema, Piet, Keune, Katrien

“… The impact of solvent exposure on oil paintings and the differences between solvent application methods are longstanding topics in cleaning studies. Solvent …”
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Imaging secondary ion mass spectrometry of a paint cross section taken from an early Netherlandish painting by Rogier van der Weyden von Keune, Katrien, Boon, Jaap J

“… Static secondary ion mass spectrometry (SIMS) is introduced as an analytical technique for the examination of paint cross sections to obtain simultaneous …”
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The kinetics of metal soap crystallization in oil polymers von Hermans, Joen, Zuidgeest, Lonneke, Iedema, Piet, Woutersen, Sander, Keune, Katrien

“… The crystallization of metal soaps in oil paint is an important chemical phenomenon that affects the appearance and structural stability of many works of art …”
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Traces of water catalyze zinc soap crystallization in solvent-exposed oil paints von Hermans, Joen, Helwig, Kate, Woutersen, Sander, Keune, Katrien

“… The crystallization of metal soaps in polymer matrices is a complex process that affects the stability of oil paintings, as well as the properties of …”
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Time‐Dependent ATR‐FTIR Spectroscopic Studies on Fatty Acid Diffusion and the Formation of Metal Soaps in Oil Paint Model Systems von Baij, Lambert, Hermans, Joen J., Keune, Katrien, Iedema, Piet

“… The formation of metal soaps (metal complexes of saturated fatty acids) is a serious problem affecting the appearance and structural integrity of many oil …”
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Exploring Benzyl Alcohol Derivatives and Related Compounds in the Cleaning of Oil Paintings von Liu, Chun (Tracy), Alvarez-Martin, Alba, Keune, Katrien

“… This study examines five benzyl alcohol derivatives and three chemically similar compounds and compares them against benzyl alcohol in gelled emulsions for the …”
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Time-Dependent ATR-FTIR Spectroscopic Studies on Solvent Diffusion and Film Swelling in Oil Paint Model Systems von Baij, Lambert, Hermans, Joen J, Keune, Katrien, Iedema, Piet D

“… In the restoration of paintings, solvent diffusion and swelling of polymeric oil paint binding media are important factors to consider. Common cleaning methods …”
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The crystallization of metal soaps and fatty acids in oil paint model systems von Hermans, Joen J, Keune, Katrien, van Loon, Annelies, Iedema, Piet D

“… The formation and crystallization of metal soaps in oil paint layers is an important issue in the conservation of oil paintings. The chemical reactions and …”
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The concentration and origins of carboxylic acid groups in oil paint von Baij, Lambert, Chassouant, Louise, Hermans, Joen J, Keune, Katrien, Iedema, Piet D

“… Although the concentration of carboxylic acid (COOH) groups is crucial to understand oil paint chemistry, analytical challenges hindered COOH quantification in …”
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Soft X‐ray nanospectroscopy for quantification of X‐ray linear dichroism on powders von Hageraats, Selwin, Thoury, Mathieu, Stanescu, Stefan, Keune, Katrien

“… X‐ray linear dichroism (XLD) is a fundamental property of many ordered materials that can for instance provide information on the origin of magnetic properties …”
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