A Brief History of Ceramic Materials and Introduction to Their Dynamic Behavior

2021 ◽  
pp. 1-13
Keyword(s):  
Dynamic Behavior ◽  
Ceramic Materials ◽  
History Of

Influence of boundary microstructure on the abrasive wear of a high-alumina ceramic

1994 ◽  
Vol 52 ◽  
pp. 634-635
Author(s):  
C. P. Doğan ◽  
J. A. Hawk
Keyword(s):  
Heat Treatment ◽  
Elevated Temperatures ◽  
Bulk Material ◽  
Ceramic Materials ◽  
High Alumina ◽  
Polycrystalline Ceramic ◽  
Before And After ◽  
Subsequent Exposure ◽  
History Of ◽  
Boundary Microstructure

The glassy melt present at the grain boundaries of many commercially-produced, polycrystalline ceramic materials will often crystallize during cool down from the sintering temperature, or during subsequent exposure to elevated temperatures. The extent of devitrification of the boundary glass, and the types of phases that form, depend upon the composition of the original glass melt and the thermal history of the material. In a 96% Al2O3 ceramic, for example, a boundary glass that is high in CaO will crystallize to anorthite (CaAl2Si2O8), gehlenite (Ca2Al2SiO7), garnet ((Mg,Ca)3Al2Si3O12) and spinel (MgAl2O4) upon exposure to temperatures between 1050° and 1350° C. Devitrification is essentially complete within one hour of exposure to these elevated temperatures. The microstructure of such a material, before and after a 100-hour heat treatment at 1150° C, is illustrated in Figs. 1 and 2, respectively.Although the microstructure of such materials can change dramatically with heat treatment, there is little evidence that this difference results in a change in the room temperature mechanical properties of the bulk material.

THE YABNAL-MOTUL CERAMIC COMPLEX OF THE LATE CLASSIC PERIOD AT CHICHEN ITZA

2012 ◽  
Vol 23 (2) ◽  
pp. 379-402 ◽  
Author(s):  
Eduardo J. Pérez de Heredia Puente
Keyword(s):  
Ceramic Materials ◽  
Classic Period ◽  
Northern Plains ◽  
Late Classic ◽  
Entire Area ◽  
Terminal Classic ◽  
Frequent Use ◽  
History Of ◽  
Materials Used ◽  
Chichen Itza

AbstractOur understanding of the history of ancient Chichen Itza has been advanced significantly in recent years by the Instituto Nacional de Antropología e Historia's Chichen Itza Archaeological Project. One important advance has been the definition of a new ceramic complex for the site of Yabnal, which dates to the Late Classic period, and corresponds to the Motul ceramic complex of Mayapan. The majority of materials used to define the Yabnal complex come from recent excavation of terraces and platforms distributed throughout the entire area occupied by Chichen Itza in its heyday, but also includes finds in association with the construction and use of buildings with rooms such as the substructure of the Temple of the Initial Series. The most important ceramic materials include complete and restorable vessels obtained from sealed contexts. The Yabnal ceramic complex displays a variety of local and imported wares, similar to those found elsewhere in the northern plains, with the Slate Ware group proving possibly the most important. Ceramic Slate Ware is a high-quality ceramic characterized by the frequent use of volcanic ash as temper, and demonstrates a deeply rooted tradition in northern Yucatan, spanning roughly 600 years. Although most recent discussion of ceramics at Chichen Itza has focused on the Terminal Classic and Postclassic periods, this study examines the early Yabnal ceramic complex of the Late Classic period with a focus on the site, its chronology, and the important implications this ceramic complex has for the general history of the northern plains.

scholarly journals CHARACTERISTICS OF THE YAROSLAVL PLINTH OF THE 13 CENTURY AND PLINTH-BASED CONSTRUCTION: PRELIMINARY OBSERVATIONS

2020 ◽  
pp. 252-268
Author(s):  
А. В. Яганов ◽  
Е. И. Рузаева ◽  
А. В. Энговатова
Keyword(s):  
Ceramic Materials ◽  
Construction Technology ◽  
History Of

В работе рассматривается эпизод истории древнерусского зодчества, связанный со строительством из керамических материалов (плинфы) в Ярославле начала XIII в. Приоритетом является рассмотрение особенностей изготовления ярославского кирпича, но, кроме того, затрагиваются вопросы эволюции строительной технологии, примененной в двух ярославских постройках. The paper reviews an episode from the history of Medieval Russia architecture related to construction with the use of ceramic materials (plinth) in Yaroslavl in the early 13 century. The main focus of the paper is review of specific traits of Yaroslavl brick fabrication, it also touches upon issues of evolution of construction technology applied in two Yaroslavl buildings.

scholarly journals RECONSTITUTION DES CHAINES OPERATOIRES DE FABRICATION DES CERAMIQUES NEOLITHIQUES DANS LE BASSIN PARISIEN RECONSTRUCTION OF THE PROCESS TECHNIQUES OF THE NEOLITHIC POTTERY IN PARIS BASIN: A RESEARCH ASSESSMENT

2015 ◽  
Vol 4 (3) ◽  
pp. 72-90
Author(s):  
François Giligny
Keyword(s):  
Ceramic Materials ◽  
Data Repository ◽  
Research Assessment ◽  
Paris Basin ◽  
Production Methods ◽  
Cultural Approach ◽  
The North ◽  
Sont Encore ◽  
History Of ◽  
The Relationship

Depuis une quinzaine d'annes, les travaux de reconstitution des chanes opratoires de faonnage de la cramique ont t raliss sur des corpus nolithiques du Bassin parisien et du nord de la France. Ces travaux sont mens par le biais de mmoires universitaires ou de programmes de recherches et sont encore largement indits. Ils sont bass sur les principes noncs ds les annes 1950 par les archologues et ethnologues des techniques sous l'gide en France d'A. Leroi-Gourhan et d'Hlne Balfet (1953) et ont t connu un regain d'intrt dans les annes 1990 2000 (Astruc et al. 2004, Giligny and Mry 2010). Ils sont galement fonds sur une tradition des tudes de matriaux cramiques mens en parallle ds les annes 1980 (Constantin and Courtois1980). Le principe de ces travaux est bas sur une approche double : une analyse et description des stigmates et macrotraces de faonnage ainsi que des reconstitutions exprimentales afin de tester les chanes opratoires. Les premires donnes nous permettront une approche trans-culturelle et une reconstitution de l'histoire des mthodes de production des premires cramiques dans le nord de la France. Ils permettent aussi d'apprhender de manires anthropologique les relations entre technique et socit. Abstract : Since about fifteen years, works of reconstruction of the pottery operational sequence of manufacturing were realized on corpuses of the Neolithic of Paris Basin and the North of France. These works were led within the framework of university memoirs or of research programs and are still widely unpublished. They are based on the principles expressed from the 1950s by archaeologists and ethnologists of techniques trained in France by A. Leroi-Gourhan as Hlne Balfet (1953) [1] renewed in the 1990s to 2000 [2; 3]. They also lean on a tradition of the ceramic materials studies led in parallel since the 1980s [4]. The principle of these works bases on a two-pronged approach: an analysis and a description of stigmas and shaping fabric marks and the experimental reconstructions to test the hypotheses of operational sequences. The first data repository will have to allow later a cross-cultural approach and a reconstruction of the history of the production methods of the first potteries in northern France. They also allow to work on the anthropological analysis of the relationship between technique and society.

Dynamic Damage in Certain Monolithic Ceramic Materials

1991 ◽  
Vol 58 (3) ◽  
pp. 639-643 ◽  
Author(s):  
A. E. Giannakopoulos
Keyword(s):  
Dynamic Response ◽  
Dynamic Behavior ◽  
Constitutive Relation ◽  
Ceramic Materials ◽  
Stress Waves ◽  
Material Behavior ◽  
Plastic Behavior ◽  
Longitudinal Stress ◽  
Monolithic Ceramics ◽  
Dynamic Damage

In the present work, the propagation of elasto-damage longitudinal stress waves in thin rods is investigated. The material behavior is characteristic to that of certain monolithic ceramics. The damage constitutive relation that characterizes this type of materials gives rise to certain dynamic behavior which is somewhat different from dynamic plastic behavior. Plastic and damage dynamic response are compared through an example.

THE ETHNOHISTORY AND ARCHAEOLOGY OF CUAUHQUECHOLLAN, VALLEY OF ATLIXCO, MEXICO

2015 ◽  
Vol 26 (2) ◽  
pp. 329-345 ◽  
Author(s):  
Avis Mysyk ◽  
Lucero Morales Cano
Keyword(s):  
Settlement Patterns ◽  
Ceramic Materials ◽  
Archaeological Record ◽  
Postclassic Period ◽  
Preclassic Period ◽  
Different Types ◽  
Late Postclassic ◽  
History Of

AbstractDespite the commercial, economic, and military importance of the Valley of Atlixco to the history of Mesoamerica, it has not received as much attention from ethnohistorians and archaeologists as it warrants. This paper illustrates that importance by attempting to correlate different types of evidence from the sites of Atlixco and Cuauhquechollan. Atlixco—the settlement referred to in the ethnohistoric sources as Cuauhquechollan—was occupied continuously from the Early Preclassic period to the middle of the Late Postclassic period (a.d.1443), when it was relocated 20 km to the southwest (present-day Huaquechula). The new settlement retained the name, Cuauhquechollan, while Atlixco became referred to as Huehuecuauhquechollan (Old Cuauhquechollan). The evidence consists of a variety of ethnohistoric sources, the archaeological record (settlement patterns and ceramic materials), and the iconography of Late Postclassic sculptures and carvings located in and around Huaquechula, and in the immediate vicinity of the Valley of Atlixco. In spite of the limitations of the different types of evidence, the findings suggest that there are sufficient points of overlap to allow for a better understanding of the importance of the Valley of Atlixco and to provide the impetus for further research.

scholarly journals Measurement of Dynamic Behavior of Running- Specific Prostheses by an Impact Test

Proceedings ◽  
2020 ◽  
Vol 49 (1) ◽  
pp. 145
Author(s):  
Hiroki Nakayama ◽  
Yuki Takahashi ◽  
Katsumasa Tanaka
Keyword(s):  
Dynamic Behavior ◽  
Impact Load ◽  
Velocity Ratio ◽  
Correlation Method ◽  
Image Correlation ◽  
Impact Experiment ◽  
Foot Strike ◽  
History Of ◽  
The Difference ◽  
The Impact

The objective of this study was to evaluate rebound characteristics for running-specific prostheses by quantifying their dynamic behavior by an impact experiment. The impact experiment was conducted to produce a typical ground foot strike contact, and to obtain the dynamic behavior of blades during and after impact. The motion of the impactor and displacement of the blade was quantified by tracking markers attached to the surface of the impactor and blade using the digital image correlation method. Impact load was also calculated using the history of acceleration. An average spring stiffness, which was obtained by dividing the maximum impact load by its displacement, was proposed to evaluate the rebound characteristics for prostheses. As a result, the difference between the types of blades can be observed using the proposed stiffness and velocity ratio. This relationship indicates that the stiffness and the ratio may have the potential to be applicable to evaluate the performance of blades.

Reinforcement of Porcelain by Mullite Fiber for Power Applications

2012 ◽  
Vol 512-515 ◽  
pp. 596-599
Author(s):  
Lei Chen ◽  
Li Qiao
Keyword(s):  
Bending Strength ◽  
Power Transmission ◽  
Ceramic Materials ◽  
Characterization Methods ◽  
Mullite Fiber ◽  
Mullite Fibers ◽  
History Of ◽  
Porcelain Insulators ◽  
Transmission And Distribution ◽  
Further Development

Porcelain insulator has a long history of being used in power transmission and distribution due to the good strength, chemical resistance capacity and mature manufacturing technology. However, there are some disadvantages of porcelain materials which could be the barrier for the development of porcelain insulators such as brittleness, which could lead to severe hurt to personnel and power station after a burst failure. In this paper, mullite fibers are used in order to improve the mechanical properties of porcelain material and further enhance the anti-burst behavior of porcelain insulators. The samples were prepared by traditional wet method for ceramic materials and several material characterization methods including XRD, SEM were employed to evaluate the reinforcement effect. The test result showed that with the addition of mullite fibers both the bending strength and the fracture toughness of porcelain materials have been largely improved. The investigation provided a meaningful pathway for further development not only for porcelain insulators but also for the power industry.

History and Future Prospect of Electro-ceramics in Japan and Asia

2012 ◽  
Vol 2012 (CICMT) ◽  
pp. 000002-000009
Author(s):  
Hiroshi Takagi
Keyword(s):  
Mass Production ◽  
Future Prospect ◽  
Ceramic Materials ◽  
Electronic Components ◽  
Zno Varistor ◽  
The World ◽  
History Of ◽  
Tokyo Institute ◽  
Institute Of Technology ◽  
Insulating Ceramics

On the background of a long history of Japanese ceramics, various electro-ceramic materials have been studied and many kinds of electronic components using them have been developed in Japan. The first invention of electro-ceramics in Japan should be a ferrite at Tokyo Institute of Technology in 1930, and the mass production of ferrite started in 1937. Then, Japanese electro-ceramic industry has led the world on electro-ceramic materials and components until now, especially in the fields of BaTiO3, PZT, PTC thermistor, ZnO varistor and insulating ceramics. In recent years, new electro-ceramic materials, their processes and new devices using them have been still studied actively in Japan. Currently, R&D activities in Asia outside of Japan, and electro-ceramic industries in those areas have been grown steadily.

Numerical Study of CFRP-Bonded Pressure Pipes Subject to Impact Load

2014 ◽  
Vol 602-605 ◽  
pp. 432-437 ◽  
Author(s):  
Yang Zhao ◽  
Zhen Yu Wang ◽  
Zhi Guo He
Keyword(s):  
Internal Pressure ◽  
Dynamic Behavior ◽  
Impact Load ◽  
Coupling Effect ◽  
Numerical Study ◽  
Damage Model ◽  
Numerical Approach ◽  
Pressure Pipes ◽  
History Of ◽  
Insight Into

A numerical approach is carried out to investigate the dynamic behavior of the CFRP strengthened pressure pipes subjected to impact load. In the FE analyses, Johnson-cook model is used to simulate metal subjected to large plastic strains and high strain rates, the fluid and pipe interaction is modeled by the surface-based fluid cavity to include the coupling effect between the deformation of the pipe and the internal pressure. Besides, the Hashin damage model is used to predict the damage of CFRP. The objectives of the numerical simulations are to capture the measured forming and crash history of the CFRP strengthened pressure pipes and gain an insight into the dynamic behavior of CFRP strengthened pressure pipes subject to impact load. The effects of internal pressure and the thickness of the CFRP are investigated, providing a detailed understanding of parameter sensitivity.

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