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Competences

CARAA was created in 2010 by Michel Bouchard, a chemist by training that holds a PhD in archaeometry and spectroscopy from the National Museum of Natural History in Paris. After obtaining his PhD in 2001, Michel Bouchard was a research engineer at the CNRS until 2005, working in particular on the study of metal oxides (Lille) or the degradation of varnishes by UV light (Paris).

In 2006, he joined the Getty Conservation Institute in Los Angeles as a Conservation scientist, working on the collections and museum acquisitions. In 2009, Michel Bouchard left the Getty Museum to create CARAA, an analytical laboratory dedicated to curators, conservators and professionals from the art market.

Research projects undertaken to date by Michel Bouchard involve most of the materials present in art and archeology. With the experience of its founder and his collaborations, CARAA can meet all the needs of professionals of Art.



Pigments and paintings

 

Prehistoric pigments study from various site in the Quercy/France
Smith D.C., Bouchard M.,  Lorblanchet M., 1999, J. Raman Spectrosc. 30, 347-354
Smith D.C., Bouchard M., 2001, in La grotte de Pergouset, Ed. Lorblanchet M., Daf, Paris, 174-180

CARAA

Prehistoric pigments study from the cave of Mayenne-Science/France

Pigeaud R., Bouchard M., Laval E., 2004, Gallia-Préhistoire, vol. 46
Bouchard M., Avril 1999 : Nouvelles applications de la Microscopie Raman en archéologie et en préhistoire. in Archéologia, 355, 8-9.

CARAA

Prehistoric pigments study from various outdoor site in Mato Grosso/Brazil   
Smith D.C., Bouchard M., 2005, in Pré-Historia do Mato Grosso : Abrigios Rupestres de Santa Elina e da Cidade de Pedra, Ed. A. Vilhena Vialou, Universita da Sao Paulo, Brésil.

CARAA

Exhaustive study of the pigments palette of Sam Francis
Bouchard M., Rivenc, R., Menke C., Learner T., 2009, e-Preservation science, 6, 27-37

CARAA

Multi-analytical study of organic pigments and dyes, in particular Gardenia augusta
Canamares M-V, Leona M., Bouchard M., Grzywacz C., Wouters J., 2009, J. Raman Spectrosc, 41, 4, 391 – 397.

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Fundamental study of the composition of cobalt-based pigments (blue, green, violet and yellow)
Part 1: Bouchard M., Gambardella A., 2010, J. Raman Spectrosc., visible online.

CARAA

Study of the (re)-coloration campaigns on a collection of 16 to 19th century drawings (Gutierrez Collection).
Bouchard M., Trentelman K., 2008, à IRUG’2008, Vienne/Autriche.

CARAA

Study of the pigments palette and fading phenomena (faedometry) on watercolors by Georgia O’Keeffe
Kronkright D., Druzik J., Trentelman K., Bouchard M., Schmidt C., Pesme C., 2010, à AIC 38th annual Meeting, Milwaukee, USA, 2010

CARAA

Study of the gilding and under-painted layers on a J. P. Schor table, c.1670.
(unpublished, see the link)

CARAA

Study of the original and recent pigments from venetian commode, c. 1745.
(unpublished, see the link)

CARAA

Study of the numerous restoration campaigns on a polychrome terracotta by Riccio (Andrea Briosco), c. 1520.
(unpublished, see the link)

CARAA

Study of the pigments on two Peruvian models (c. 900 D.C., Chimu Tardio) of the ceremonial site of Haca de la Luna
(unpublished)

CARAA

Study of the mural paintings from the ceremonial Peruvian site of Haca de la Luna (200-800 D.C., culture Moche)
(unpublished)

CARAA

Study of the wall painting pigments in the church of Sainte-Radegonde in Giverny, France (11-16th c.)
(unpublished)

CARAA

Study of the rock art paintings and degradation processes on the site of Canyonlands National Park/Utah/USA.
(unpublished)

CARAA

Study of the gypsum preparation layers on a 17th century polychrome sculpture. (Saint Ginés de la Jara by Luisa Roldán)
(unpublished, see the link)

CARAA


Metals, corrosion

 

Study of modern and antic coins collections (identification of the alloys and alteration processes).
Bouchard M., Smith D.C., 2001, Asian Chemistry Letters, 5, N° 3, 157-169;
Bouchard M., 1999, in Numismatique & Change, 299, 29-31.

CARAA

Non-destructive study of the corrosion products on various metallic archaeological objects.
Bouchard M., Smith D.C., in GEORAMAN and ARCHÆORAMAN : Raman Spectroscopy Applied to the Geosciences, including Geomaterials, Biomaterials and Pigments in Art and Archæology, Ed. Rull F., Smith D.C. and Edwards H.G.M., University of Valladolid.

CARAA

Mineral and analytical comparative study of three polymorphs of the copper hydroxychloride (Cu2Cl(OH)3)
Bouchard M., Smith D.C., 2002, at Antwerp/Belgium : Art 2002, Non-destructive Testing & Microanalysis for the Diagnostics and Conservation of the Cultural & Environmental Heritage, 2-6 June 2002

CARAA

Study of the electrochemical cleaning process for silver gilt tarnished objects (17th c.).
Wolfe J., Bouchard M., Degrigny C., 2010, at Metal 2010, ICOM-CC Interim Meeting, Charleston, USA.

CARAA

Elemental and comparative study of three “bronze” sculptures of St Jean Batiste (estimated 15 th c.) (Museums of Kimbell/USA, Saint Louis/USA & Private Coll.)
(unpublished)

CARAA

In-situ analyses of ceremonial pre-Columbian objects in the Musée de l’Homme, Paris.
Bouchard M., Smith D.C., Mai 2000, dans Dossiers d’Archéologie, l’Archéométrie, les sciences appliquées à l’archéologie’, 253, 60-61.

CARAA

Study of the alloy composition of two busts of popes by Gian Lorenzo Bernini (Gregory XV Ludovisi et Paul V Borghese)
(unpublished)

CARAA

Study of a coffer and its stand by A-C Boulle (Lewis Walpole Library/UK).
(unpublished)

CARAA

Non-invasive study of the alloy composition of 19 French « bronzes » from the 17th-18th centuries from of the exhibit The French Bronzes (Lespingola, Pigalle, Houdon, Anguier, etc.)
(unpublished)

CARAA

Study of 4 monumental French « Bronzes », 17th c. at the Huntington Library/USA.
(unpublished)

CARAA

In-situ and non-invasive X-ray fluorescence analyses of gilt bronzes from 18th c. European furniture in the galleries of the Fine Arts Museums of San Francisco. (BVRB, Oeben, Carlin, Hansen, Hume, Desforges, Roentge, Pierre Langlois, etc.)
(unpublished)

CARAA

X-ray fluorescence analyses of the first « Oscar » (bronze proof), Hollywood (c. 1928)
(unpublished)

CARAA

Study of outdoor metallic sculptures from the Stark collection (Hepworth, Miro, Moore, Shapiro, Giacometti, Magritte, etc.)
Considine B., Wolfe J., Posner K. and Bouchard M., 2010, The Conservation of the Stark Collection, Getty Pub., Los Angeles.

CARAA

Pre-acquisition study of two « bronzes » by Pietro Cipriani (c. 1722) (Dancing Faun and Venus)
(unpublished, see the link : Dancing Faun, Venus)

CARAA


Gems, rocks and minerals

 

Building of a Raman spectral database for art and archaeological material.
Bouchard M., Smith D.C., 2003, Spectrochimica Acta A, 59, 10, 2247-2266.

CARAA

Pre-acquisition study of a « Christ in Majesty », Limoges (~1188)
(unpublished, see the link)

CARAA

Study of an alabaster bust by F.X. Messerschmidt (c. 1770)
(unpublished, see the link)

CARAA

Multi-analytical and non-invasive study of antic and 18-19th c. gems.
(unpublished)

CARAA

Study of an early 16th c. «Virgin and Child ».
(unpublished, see the link)

CARAA

In-situ study of various pre-Columbian rock and crystal objects at the Musée de l’Homme, Paris.
Smith D.C., Bouchard M., Mai 2000, dans Dossiers d’Archéologie, l’Archéometrie, les sciences appliquées à l’archéologie’, 253, 54-59 

CARAA

Pre-acquisition study of a gilt mirror, gems and diamonds (Royal mirror)
(unpublished)

CARAA


Stained-glass

 

Technical study of stained glass and their degradation
Bouchard M., Smith, D.C, Carabatos-Nedelec C.,  2007, Spectrochimica Acta, 68, 1101-1113.
Bouchard M.,  février 2001, Les vitraux : composition et altérations. Fiches in Archéologia, 375.

CARAA


Contemporary material (plastics-pigments)

 

Comparative study of cellulose-based material.
Schilling M., Bouchard M., Khanjian H., Learner T., Phenix A., Rivenc R., 2010, Accounts of Chemical Research, visible online.

 

Study of outdoor painted sculptures from the Stark collection (Calder, Leger, Lichtenstein, etc.)
Considine B., Wolfe J., Posner K. and Bouchard M., 2010, The Conservation of the Stark Collection, Getty Pub., Los Angeles/USA

CARAA

Analyses of the « Portrait de Marcel Duchamp » by Antoine Pevsner and its degradation.
(unpublished, see the link)

CARAA

Technical study of the printing processes of the photographs E. Weston (1886-1956), M. Mather (1885-1952) and E. S. Curtis (1868-1952).
(unpublished)

CARAA

Within the PopArt program, non-invasive analyses of different kind of plastics used in modern and contemporary art.
Bouchard M., Rivenc R., Learner T., 2009, at 5th International Congress on the Application of Raman Spectroscopy in Art and Archaeology, Bilbao, Portugal.

CARAA

Study of the material used in a reduced architectural model by J. Lautner (1911 – 1994), Turner House, Aspen, CO/USA.
(unpublished)

CARAA

Analyses of an « Achrome » (1960) by P. Manzoni.
(unpublished)
 

Organic material

 

Study and set-up of a gas chromatography database for graphic document.
Bouchard, M., 1996 : La constitution des encres, papyrus et autres documents graphiques par C.P.G., Centre de Recherche sur la Conservation des Documents Graphiques (C.R.C.D.G), the CNRS, Paris. pp.51 + annexes.

CARAA

Analyses of the multiple restoration coatings on a marble bust by F. Harwood, 1758.
(unpublished, see the link)

CARAA

Study for the conservation of a Flux’movement object (G. Maciunas, Fluxmouse, 1972)
(unpublished)

 


Toxicology

 

Study and characterization of asbestos fibers in a 18th c. book collection.
Bouchard M., Tailor K., Welch S., 2008, at AIC’2008, Denver, USA.

CARAA

Study and characterization of asbestos fibers in a « magic lantern » (end of 19th c.)
(unpublished)

CARAA

Characterization of uranium in a photography using the uranotype process.
(unpublished)

CARAA

Study and characterization of toxic material (As, Hg, …) in naturalized animals.
(unpublished)

CARAA


General

 

Elemental analyses of historical or art-related copper-based material.

Heginbotham A. et al., 2010, at Metal 2010, ICOM-CC Interim Meeting, Charleston, USA.
CARAA

Non-invasive and mapping x-ray fluorescence spectroscopy applied to four kinds of art objects: metal, paintings, glasses and manuscripts.

Trentelman K, Bouchard M., Ganio M, Namowicz C, Patterson CS, Walton M, 2009, X-Ray Spectrometry, visible online.

 


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