1、Designation: C 1065 08Standard Specification forNuclear-Grade Zirconium Oxide Powder1This standard is issued under the fixed designation C 1065; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A number in
2、 parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope1.1 This specification defines the physical and chemicalrequirements for zirconium oxide powder intended for fabri-cation into shapes, either entire
3、ly or partially of zirconia, foruse in a nuclear reactor core.1.2 The material described herein shall be particulate innature.1.3 The values stated in SI units are to be regarded asstandard. No other units of measurement are included in thisstandard.2. Referenced Documents2.1 ASTM Standards:2C117 Te
4、st Method for Materials Finer than 75-m (No.200) Sieve in Mineral Aggregates by WashingC 371 Test Method for Wire-Cloth Sieve Analysis of Non-plastic Ceramic PowdersC 859 Terminology Relating to Nuclear MaterialsC 1233 Practice for Determining Equivalent Boron Con-tents of Nuclear MaterialsE11 Speci
5、fication for Wire Cloth and Sieves for TestingPurposesE 105 Practice for Probability Sampling Of Materials2.2 ANSI Standard:3ANSI/ASME NQA-1 Quality Assurance Requirements forNuclear Facility Applications2.3 U.S. Government Standard:4Code of Federal Regulations, Title 10, Part 50, Energy(10 CFR 50)
6、Domestic Licensing of Production and Uti-lization Facilities3. Terminology3.1 Terms shall be defined in accordance with TerminologyC 859 except for the following:3.2 buyerthe organization issuing the purchase order.3.3 phase transformationthe rearrangement of the atomicordering of a crystalline latt
7、ice as a material is cycled througha critical transformation or inversion temperature. The changefrom one crystalline phase to another may be accompanied bya volume change that could lead to cracks or defects inproducts fabricated from such materials.3.4 powder lota specified quantity of zirconium o
8、xidepowder (with stabilizing additive, if applicable) blended to-gether such that samples taken in accordance with the proce-dures of Section 8 can be considered as representative of theentire specified quantity.3.5 sellerthe zirconium oxide processor.3.6 stabilizing additivea material which, when a
9、dded insufficient quantity to the subject material exhibiting the phasetransformation, produces a stabilized crystalline phase thatdoes not undergo a transformation at any temperature withinthe expected fabrication or usage regime of the manufacturedproduct; the potentially deleterious volume change
10、 is thereforeavoided.4. Ordering Information4.1 The buyer shall specify the following information on theorder:4.1.1 Quantity (weight of delivered product).4.1.2 Nominal particle size range and applicable tolerancesin accordance with U.S. Standard Sieve Series (SpecificationE11). Test Method C 371 an
11、d Test Method C117and Speci-fication E11may be applied for particles larger than 37 m.For particle sizes less than 37 m, the particle size distributionwill be determined using a method agreed upon between thebuyer and the seller.4.1.3 Stabilizing AdditiveThe amount and types of stabi-lizing additive
12、s (if any, including limits).4.1.4 Lot size.4.1.5 Sampling requirements.1This specification is under the jurisdiction of ASTM Committee C26 onNuclear Fuel Cycle and is the direct responsibility of Subcommittee C26.03 onNeutron Absorber Materials Specifications.Current edition approved Dec. 1, 2008.
13、Published December 2008. Originallyapproved in 1987. Last previous edition approved in 1993 as C 1065 93 which waswithdrawn May 2002 and reinstated in December 2008.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Bo
14、ok of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.3Available from American National Standards Institute (ANSI), 25 W. 43rd St.,4th Floor, New York, NY 10036, http:/www.ansi.org.4Available from U.S. Government Printing Office Superintendent of Doc
15、uments,732 N. Capitol St., NW, Mail Stop: SDE, Washington, DC 20401, http:/www.access.gpo.gov.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.5. Chemical Composition5.1 A stabilizing additive may be used with the zirconiumoxide. The
16、recommended stabilizing additive is either calciumoxide (CaO) or yttrium oxide (Y2O3). The recommendedadditive concentration in the case of CaO stabilization is 4 to8 weight %. In the case of Y2O3stabilization, the recom-mended additive concentration is 14 to 20 weight %.5.2 Use analytical chemistry
17、 methods as agreed upon be-tween the buyer and the seller.5.3 Impurity ConcentrationThe impurity concentrationexcluding the stabilizing additives shall not exceed 0.5weight %. Individual element limits are specified in Table 1.The buyer may specify additional limits for elements not listedin Table 1
18、.5.4 The total equivalent boron content (EBC) shall notexceed 500 g/g on a mass basis relative to ZrO2. The totalEBC is the sum of the individual EBC values. The method ofperforming the calculation shall be as indicated in PracticeC 1233.6. Physical Requirements Physical Requirements6.1 The nominal
19、particle size, particle size distribution andapplicable tolerances, shall be specified on the purchase order.7. Cleanliness7.1 The powder shall be handled in a manner to avoidcontamination by foreign matter such as dust, cleaning agentsand organics, and materials such as plastics and paper used inpa
20、ckaging. Cleaning solutions, if used, shall be free of halidesand nonvolatile additives and shall be removed from thepowder prior to sampling and packaging.8. Sampling8.1 Sampling plans to meet acceptance criteria and inspec-tion and measurement procedures that describe the method ofcompliance with
21、this specification shall be approved by thebuyer prior to use. The degree of sampling shall be specified onthe purchase order. Practice E 105 is referenced as a guide.8.2 Sufficient sampling shall be taken, as needed, for qualityverification tests, acceptance tests, referee tests and archivesamples.
22、8.3 Archive samples shall be retained and disposed inaccordance with the buyers instructions.9. Inspection and Certification9.1 The seller shall inspect the material covered by thisspecification and shall furnish the buyer with certificates oftests showing the results of testing and inspection perfo
23、rmed oneach powder lot.9.2 The seller shall certify that each powder lot is incompliance with the provisions of this specification.10. Rejection and Rehearing10.1 Unless the buyer and seller agree otherwise, rejectionand acceptance shall be on a lot basis.10.2 Powder lots that fail to conform to the
24、 requirements ofthe specification may be rejected by the buyer. The seller maypetition the buyer to waive selected requirements for identifiedout-of-specification lots. The decision to grant such waiverbelongs to the buyer. The seller may also apply any remedy tobring rejected lots into specificatio
25、n providing the seller candemonstrate to the buyer that such remedy does not impair thefunction or preclude the certification of the rejected material.10.3 In the event of disagreement over the results ofanalysis, samples shall be submitted to a mutually selectedreferee for resolution.11. Packaging
26、and Package Marking11.1 The powder shall be packaged in sealed containers forshipment from the seller to the buyer. The seller will beresponsible for using a shipping container which ensurescleanliness, minimizes moisture pickup, provides adequateprotection against damage during transportation, and
27、ensuresreasonable ease of unpackaging.11.2 Each container shall be clearly marked with the fol-lowing:11.2.1 Zirconium oxide powder plus stabilizing additive, ifapplicable,11.2.2 Purchase order number,11.2.3 Purchase order specification,11.2.4 Gross, tare, and net weight,11.2.5 Lot number, and11.2.6
28、 Name of seller.12. Quality Assurance12.1 Quality Assurance requirements shall be agreed uponbetween the buyer and the seller when specified in the purchaseorder. Code of Federal Regulations, Title 10, Part 50,AppendixB, and ANSI/ASME NQA-1 are referenced as guides.13. Keywords13.1 CaO; powder; stab
29、ilizing additive; Y203; zirconiumoxideTABLE 1 Impurity Concentration LimitsElementMaximum ConcentrationLimit (g/g Powder)Hf 200B 100Gd 50Gd+Sm+Eu+Dy 200Co 100Si 2000F3F+Cl+Br+I 100Fe 1000CaA3000Mg 1200Al 1500Ti 100Th 400AThis number will be higher if used as a stabilizing additive.C1065082ASTM Inter
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32、ld be addressed to ASTM International Headquarters. Your comments will receive careful consideration at a meeting of theresponsible technical committee, which you may attend. If you feel that your comments have not received a fair hearing you shouldmake your views known to the ASTM Committee on Stan
33、dards, at the address shown below.This standard is copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org).C1065083
