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Pierre Armand Jacquet
Pierre Armand Jacquet (7 April 1906 – 6 September 1967) was a French chemical engineer and metallurgist. He contributed to electrolytic polishing techniques to produce very smooth metal coatings and also to non-destructive approaches for surface metallographic analysis. Jacquet was born in St. Mande and became a chemical engineer in 1926 after studies at the École Normale Supérieure de Chimie in Paris under Charles Marie. He received a doctorate in 1938 and worked at the Société de Matériel Téléphonique in Paris. He later worked in the lab of Frédéric Joliot-Curie and during World War II for the navy. In 1929 he discovered, by reversing polarity, a method to produce smooth metal surfaces with electrolytic polishing that he continued to improve upon for multiple metals until 1940. He also studied surface metallurgy and along with E. Mencarelli and A. van Effenterre, developed a non-destructive approach to examining metal surface by applying and peeling of a nitrocellulos ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Metallography
Metallography is the study of the physical structure and components of metals, by using microscopy. Ceramic and polymeric materials may also be prepared using metallographic techniques, hence the terms ceramography, plastography and, collectively, materialography. Preparing metallographic specimens The surface of a metallographic specimen is prepared by various methods of grinding, polishing, and etching. After preparation, it is often analyzed using optical or electron microscopy. Using only metallographic techniques, a skilled technician can identify alloys and predict material properties. Mechanical preparation is the most common preparation method. Successively finer abrasive particles are used to remove material from the sample surface until the desired surface quality is achieved. Many different machines are available for doing this grinding and polishing, which are able to meet different demands for quality, capacity, and reproducibility. A systematic preparation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Saint-Mandé
Saint-Mandé () is a high-end Communes of France, commune of the Val-de-Marne Departments of France, department in Île-de-France in the eastern suburbs of Paris, France. It is located from the Kilometre Zero, center of Paris. It is one of the smallest communes of the Île-de-France by land area, but is one of the most densely populated municipalities in Europe. It is located on the edge of the 12th arrondissement of Paris, near the Porte de Vincennes and the Porte de Saint-Mandé. The motto of the city is ''Cresco et Floresco'', which means "I grow and I flourish". History On 1 January 1860, the city of Paris was enlarged by annexing neighboring communes. On that occasion, about two-thirds of the commune of Saint-Mandé was annexed to Paris, and now forms the neighborhoods of Bel-Air (Paris), Bel-Air and Picpus, Paris, Picpus, in the 12th arrondissement of Paris. In 1929, the commune of Saint-Mandé lost one-quarter of its territory when the city of Paris annexed the Bois de Vin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
École Normale Supérieure (Paris)
The ''École normale supérieure - PSL'' (; also known as ''ENS'', ''Normale sup, ''Ulm'' or ''ENS Paris'') is a ''grande école'' university in Paris, France. It is one of the constituent members of Paris Sciences et Lettres University (PSL). Originally conceived during the French Revolution, the school was founded in 1794 to provide homogeneous training of high-school teachers in France but it later closed. The school was subsequently reestablished by Napoleon I as ''pensionnat normal'' from 1808 to 1822, before being recreated in 1826 and taking the name of ''École normale'' in 1830. When institutes for primary teachers training called é''coles normales'' were created in 1845, the word ''supérieure'' (meaning upper) was added to form the current name. It has since developed into an institution which has become a platform for French students to pursue careers in government and academia. The ENS has a highly competitive selection process consisting of written and oral exami ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Frédéric Joliot-Curie
Jean Frédéric Joliot-Curie (; ; 19 March 1900 – 14 August 1958) was a French physicist and husband of Irène Joliot-Curie, with whom he was jointly awarded the Nobel Prize in Chemistry in 1935 for their discovery of Induced radioactivity. They were the second ever married couple, after his wife's parents, to win the Nobel Prize, adding to the Curie family legacy of five Nobel Prizes. Joliot-Curie and his wife also founded the Orsay Faculty of Sciences, part of the Paris-Saclay University. Biography Early years Born in Paris, France, Frédéric Joliot was a graduate of ESPCI Paris. In 1925 he became an assistant to Marie Curie, at the Radium Institute. He fell in love with her daughter Irène Curie, and soon after their marriage in 1926 they both changed their surnames to Joliot-Curie. At the insistence of Marie, Joliot-Curie obtained a second baccalauréat, a bachelor's degree, and a doctorate in science, doing his thesis on the electrochemistry of radio-elements. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
World War II
World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the vast majority of the world's countries—including all of the great powers—forming two opposing military alliances: the Allies and the Axis powers. World War II was a total war that directly involved more than 100 million personnel from more than 30 countries. The major participants in the war threw their entire economic, industrial, and scientific capabilities behind the war effort, blurring the distinction between civilian and military resources. Aircraft played a major role in the conflict, enabling the strategic bombing of population centres and deploying the only two nuclear weapons ever used in war. World War II was by far the deadliest conflict in human history; it resulted in 70 to 85 million fatalities, mostly among civilians. Tens of millions died due to genocides (including the Holocaust), starvation, ma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Banyuls-sur-Mer
Banyuls-sur-Mer (; ) is a commune in the Pyrénées-Orientales department in southern France. It was first settled by Greeks starting in 400 BCE. Geography Location Banyuls-sur-Mer is located in the canton of La Côte Vermeille and in the arrondissement of Céret. Banyuls-sur-Mer is neighbored by Cerbère, Port-Vendres, Argelès-sur-Mer and Collioure on its French borders, and by Espolla, Rabós, Colera and Portbou on its Spanish borders. The foothills of Pyrenees, the ''Monts Albères'', run into the Mediterranean Sea in Banyuls-sur-Mer, creating a steep cliff line. Toponymy Banyuls-sur-Mer was first mentioned in 981 as ''Balneum'' or ''Balneola''. In 1074, the town started being called ''Bannils de Maritimo'' in order to distinguish it from Banyuls-dels-Aspres, which lies away. In 1197, the town was mentioned as ''Banullis de Maredine'' and in 1674. In Catalan, it has been called ''Banyuls de la Marenda'' since the 19th century. The name Banyuls indicates the presence ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ASM International (society)
ASM International, formerly known as the American Society for Metals, is an association of materials-centric engineers and scientists. ASM provides several information resources, including technical books, various digital databases, and ASM Handbooks, a series of reference books that cover a range of topics and contain peer-reviewed information. These handbooks are recognized as a standard reference in the field of materials science. Examples of topics covered by the ASM Handbooks are mechanical properties of metals, corrosion studies, failure analysis, materials characterization, and much more. Other publications include technical journals such as Journal of Thermal Spray Technology and Journal of Materials Engineering and Performance. ASM also hosts numerous international conferences each year, including ASM's Annual Meeting: International Materials, Applications, and Technologies Conference and Exposition (IMAT). Six affiliate societies focused on specific areas of materials ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1906 Births
Events January–February * January 12 – Persian Constitutional Revolution: A nationalistic coalition of merchants, religious leaders and intellectuals in Persia forces the shah Mozaffar ad-Din Shah Qajar to grant a constitution, and establish a national assembly, the Majlis. * January 16–April 7 – The Algeciras Conference convenes, to resolve the First Moroccan Crisis between France and Germany. * January 22 – The strikes a reef off Vancouver Island, Canada, killing over 100 (officially 136) in the ensuing disaster. * January 31 – The Ecuador–Colombia earthquake (8.8 on the Moment magnitude scale), and associated tsunami, cause at least 500 deaths. * February 7 – is launched, sparking a naval race between Britain and Germany. * February 11 ** Pope Pius X publishes the encyclical ''Vehementer Nos'', denouncing the 1905 French law on the Separation of the Churches and the State. ** Two British members of a poll tax collecting ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1967 Deaths
Events January * January 1 – Canada begins a year-long celebration of the 100th anniversary of Confederation, featuring the Expo 67 World's Fair. * January 5 ** Spain and Romania sign an agreement in Paris, establishing full consular and commercial relations (not diplomatic ones). ** Charlie Chaplin launches his last film, ''A Countess from Hong Kong'', in the UK. * January 6 – Vietnam War: USMC and ARVN troops launch '' Operation Deckhouse Five'' in the Mekong Delta. * January 8 – Vietnam War: Operation Cedar Falls starts. * January 13 – A military coup occurs in Togo under the leadership of Étienne Eyadema. * January 14 – The Human Be-In takes place in Golden Gate Park, San Francisco; the event sets the stage for the Summer of Love. * January 15 ** Louis Leakey announces the discovery of pre-human fossils in Kenya; he names the species '' Kenyapithecus africanus''. ** American football: The Green Bay Packers defeat the Kansas City Chiefs 35–10 in th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
