81.060.20 陶瓷制品 标准查询与下载



共找到 447 条与 陶瓷制品 相关的标准,共 30

Fracture mirror size analysis is a powerful tool for analyzing glass and ceramic fractures. Fracture mirrors are telltale fractographic markings in brittle materials that surround a fracture origin as discussed in Practices C 1256 and C 1322. Fig. 1 shows a schematic with key features identified. Fig. 2 shows an example in glass. The fracture mirror region is very smooth and highly reflective in glasses, hence the name “fracture mirror.” In fact, high magnification microscopy reveals that, even within the mirror region in glasses, there are very fine features and escalating roughness as the crack advances away from the origin. These are submicrometer in size and hence are not discernable with an optical microscope. Early investigators interpreted fracture mirrors as having discrete boundaries including a “mirror-mist” boundary and also a “mist-hackle” boundary in glasses. These were also termed “inner mirror” or “outer mirror” boundaries, respectively. It is now known that there are no discrete boundaries corresponding to specific changes in the fractographic features. Surface roughness increases gradually from well within the fracture mirror to beyond the apparent boundaries. The boundaries were a matter of interpretation, the resolving power of the microscope, and the mode of viewing. In very weak specimens, the mirror may be larger than the specimen or component and the boundaries will not be present. Figs. 3-5 show examples in ceramics. In polycrystalline ceramics, the qualifier “relatively” as in “relatively smooth” must be used, since there is an inherent roughness from the microstructure even in the area immediately surrounding the origin. In coarse-grained or porous ceramics, it may be impossible to identify a mirror boundary. In polycrystalline ceramics, it is highly unlikely that a mirror-mist boundary can be detected due to the inherent roughness created by the crack-microstructure interactions, even within the mirror. The word “systematic” in the definition for “mirror-hackle boundary in polycrystalline ceramics” requires some elaboration. Mirror boundary hackle lines are velocity hackle lines created after the radiating crack reaches terminal velocity. However, premature, isolated hackle can in some instances be generated well within a ceramic fracture mirror. It should be disregarded when judging the mirror boundary. Wake hackle from an isolated obstacle inside the mirror (such as a large grain or agglomerate) can trigger early “premature” hackle lines. Steps in scratches or grinding flaws can trigger hackle lines that emanate from the origin itself. Sometimes the microstructure of polycrystalline ceramics creates severe judgment problems in ceramic matrix composites (particulate, whisker, or platelet) or self-reinforced ceramics whereby elongated and interlocking grains impart greater fracture resistance. Mirrors may be plainly evident at low magnifications, but accurate assessment of their size can be difficult. The mirror region itself may be somewhat bumpy; therefore, some judgment as to what is a mirror boundary is necessary. Fracture......

Standard Practice for Fractographic Analysis of Fracture Mirror Sizes in Ceramics and Glasses

ICS
81.060.20
CCS
发布
2009-05-01
实施

Brake linings for industrial machines

ICS
81.060.20
CCS
发布
2008-10-30
实施

이 표준은 산업기계용 브레이크 라이닝(이하 브레이크 라이닝이라 한다.) 및 산업기계용 클러

Brake linings for industrial machines

ICS
81.060.20
CCS
Q11
发布
2008-10-30
实施
2008-10-30

Brake linings for industrial machines

ICS
81.060.20
CCS
发布
2008-10-30
实施

This standard is an Amendment of Ceramic fiber blanket.

Ceramic fiber blanket(Amendment 1)

ICS
81.060.20
CCS
Q32
发布
2008-03-20
实施
2008-03-21

Glazed ceramic - Tableware

ICS
81.060.20
CCS
发布
2008
实施

이 규격은 열전대에 사용하는 자기질인 비금속 절연관(이하 절연관이라 한다.)에 대하여 규정

Non metallic insulating tube for thermocouples

ICS
81.060.20
CCS
Q32
发布
2007-08-09
实施
2007-08-09

Standard Test Method for Porosity in Vitreous Whitewares by Dye Penetration

ICS
81.060.20
CCS
发布
2007-05-01
实施

This list has been prepared for use by or for the Government in the actheof products covered by Specification MIL-PRF-49467. Listing of a product is not intended to and does not connote endorsement of the product by the Department of Defense.

CAPACITOR, FIXED, CERAMIC, MULTILAYER, HIGH VOLTAGE (GENERAL PURPOSE), GENERAL SPECIFICATION FOR

ICS
81.060.20
CCS
Y24
发布
2007-04-12
实施

This list has been prepared for use by or for the Government in the actheof products covered by Specification MIL-PRF-39014. Listing of a product is not intended to and does not connote endorsement of the product by the Department of Defense. All products listed herein have been qualified under the requirements for the product as specified in the latest effective issue of the applicable specification. This list is subject to change without notice; revision or amendment of this list will be issued as necessary. The listing of a product does not release the supplier from compliance with the specification requirements.

CAPACITOR, FIXED, CERAMIC DIELECTRIC (GENERAL PURPOSE), ESTABLISHED RELIABILITY AND NONESTABLISHED RELIABILITY, GENERAL SPECIFICATION FOR

ICS
81.060.20
CCS
Y24
发布
2007-04-05
实施

Determination of linear change of solids by thermal effect using the dilatometer method - Part 4: Testing of fired heavy ceramic materials

ICS
81.060.20
CCS
Q30
发布
2007-01
实施

This standard specifies a method for the determination of linear change of fired heavy ceramic products as function of defined temperature condition using dilatometer measurements. The method specified is also applicable to non-fired unshaped refractories until the first maximum of strain provided that the test pieces are prepared and fired in accordance with DIN EN 1402-5.

Determination of linear change of solids by thermal effect using the dilatometer method - Part 5: Testing of non-fired heavy ceramic materials

ICS
81.060.20
CCS
Q30
发布
2007-01
实施

Testing method for water absorption, bulk density, apparent specific gravity and apparent porosity of fired whiteware products

ICS
81.060.20
CCS
发布
2006-10-27
实施

이 규격은 시유하지 않은 도자기의 흡수율, 부피 비중, 겉보기 비중 및 겉기공률의 측정 방

Testing method for water absorption, bulk density, apparent specific gravity and apparent porosity of fired whiteware products

ICS
81.060.20
CCS
Q30
发布
2006-10-27
实施
2006-10-27

Testing method for water absorption, bulk density, apparent specific gravity and apparent porosity of fired whiteware products

ICS
81.060.20
CCS
发布
2006-10-27
实施

이 규격은 여과용 비트리파이드 점토 블록에 대하여 규정한다.

Vitrified clay filter block

ICS
81.060.20
CCS
Q45
发布
2006-05-26
实施
2006-05-26

Vitrified clay filter block

ICS
81.060.20
CCS
发布
2006-05-26
实施

Vitrified clay filter block

ICS
81.060.20
CCS
发布
2006-05-26
实施

이 규격은 기계 부품, 구조 재료 등의 고강도 재료로 사용되는 파인 세라믹스의 실온에서의

Fine ceramics(advanced ceramics, advanced technical ceramics)-Test method for compressive strength of monolithicceramics at room temperature

ICS
81.060.20
CCS
Q32
发布
2006-05-01
实施
2006-05-01

Fine ceramics(advanced ceramics, advanced technical ceramics)-Test method for compressive strength of monolithicceramics at room temperature

ICS
81.060.20
CCS
发布
2006-05-01
实施



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