ASTM C1066-09

Standard Specification for Nuclear Grade Zirconium Oxide Pellets

ABSTRACT
This specification applies to pellets of stabilized zirconium oxide used in nuclear reactors. The chemical composition requirements such as the stabilizing additive (calcium oxide or yttrium oxide), analytical chemistry methods, impurity concentration (including hafnium, boron, gadolinium, samarium, europium, dysprosium, cobalt, silicon, iron, calcium, magnesium, aluminum, titanium, thorium, fluorine, chlorine, bromine, iodine, and hydrogen), and moisture concentration are prescribed. The nuclear grade pellets shall conform to the specified physical requirements which includes the following: physical dimensions, density, mechanical properties and test methods such as compressive test and thermal cycling test, and visual appearance such as end chips, circumferential chips, cracks, and fissures. The requirements for cleanliness before and after sampling and packaging are given.
SCOPE
1.1 This specification applies to pellets of stabilized zirconium oxide used in nuclear reactors.
1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.

General Information

• Status: Historical
• Publication Date: 30-Jun-2009
• Technical Committee: C26 - Nuclear Fuel Cycle
• Drafting Committee: C26.03 - Neutron Absorber Materials Specifications

Relations

• Replaces: ASTM C1066-97(2004) - Standard Specification for Nuclear Grade Zirconium Oxide Pellets
• Effective Date: 01-Jul-2009

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation:C1066 −09
StandardSpecification for
1
Nuclear Grade Zirconium Oxide Pellets
This standard is issued under the fixed designation C1066; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope 3.4 pellet lot—the pellets produced from one zirconium
oxide powder lot using one set of process parameters. Pellet lot
1.1 This specification applies to pellets of stabilized zirco-
size shall be agreed upon between the seller and the buyer.
nium oxide used in nuclear reactors.
3.5 phase transformation—the rearrangement of the atomic
1.2 The values stated in SI units are to be regarded as the
ordering of a crystalline lattice as a material is cycled through
standard. The values given in parentheses are for information
a critical transformation or inversion temperature. The change
only.
from one crystalline phase to another may be accompanied by
a volume change that could lead to cracks or defects in articles
2. Referenced Documents
fabricated from such materials.
2
2.1 ASTM Standards:
3.6 powder lot—a specified quantity of zirconium-oxide
C559 Test Method for Bulk Density by Physical Measure-
powder with stabilizing additive, blended together such that
ments of Manufactured Carbon and Graphite Articles
samples taken in accordance with Section 7 can be considered
C859 Terminology Relating to Nuclear Materials
as representative of the entire quantity.
C1065 Specification for Nuclear-Grade Zirconium Oxide
3.7 seller—the zirconium oxide pellet supplier.
Powder
E105 Practice for Probability Sampling of Materials
3.8 stabilizing additive—Amaterial which, when present in
3
2.2 ANSI Standard:
sufficient concentration in the subject material exhibiting the
ANSI/ASME NQA-1 Quality Assurance Program Require-
phase transformation, produces a stabilized crystalline phase
ments for Nuclear Facility Applications
that does not undergo a transformation or inversion at any
4
2.3 U.S. Government Document:
temperature within the expected fabrication or usage regime of
Code of Federal Regulations, Title 10, Part 50–Energy (10 the manufactured pellet. The potentially deleterious volume
CFR 50) Domestic Licensing of Production and Utiliza-
change is therefore avoided.
tion Facilities
4. Chemical Composition
3. Terminology
4.1 The starting zirconium oxide powder shall be in accor-
dance with Specification C1065.
3.1 Terms shall be defined in accordance with Terminology
C859, except for the following:
4.2 A stabilizing additive shall be used with the zirconium
oxide. The recommended stabilizing additive is either calcium
3.2 buyer—the organization issuing the purchase order.
oxide (CaO) or yttrium oxide (Y O ). The recommended
2 3
3.3 pellet—a fabricated geometric shape of zirconiumoxide
additive concentration in the case of CaO stabilization is 4 to
having a chemical composition as described in Section 4.
8 weight %. In the case of Y O stabilization, the recom-
2 3
mended additive concentration is 14 to 20 weight %.
1
This specification is under the jurisdiction of ASTM Committee C26 on
4.3 Use analytical chemistry methods as agreed upon be-
Nuclear Fuel Cycle and is the direct responsibility of Subcommittee C26.03 on
tween the buyer and seller.
Neutron Absorber Materials Specifications.
Current edition approved July 1, 2009. Published August 2009. Originally
4.4 The impurity concentration excluding the stabilizing
approved in 1986. Last previous edition approved in 2004 as C1066 – 97 (2004).
additives, shall not exceed 0.5 weight %. Individual element
DOI: 10.1520/C1066-09.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or limits are specified in Table 1. The buyer may specify
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
additional limits for any other elements not listed in Table 1.
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. 4.5 The moisture concentration is included in the total
3
Available fromAmerican National Standards Institute (ANSI), 25 W. 43rd St.,
hydrogen limit (see Table 1).
4th Floor, New York, NY 10036, http://www.ansi.org.
4
AvailablefromU.S.GovernmentPrintingOfficeSuperintendentofDocuments,
5. Physical Requirements
732 N. Capitol St., NW, Mail Stop: SDE, Washington, DC 20401, http://
www.access.gpo.gov. 5.1 Physical Dimensions:
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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C1066−09
TABLE 1 Impurity Concentration Limits
5.4.1 End Chips—Pellet end surface shall not be chipped
Maxim
...

This document is not anASTM standard and is intended only to provide the user of anASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation:C1066–97 (Reapproved 2004) Designation: C 1066 – 09
Standard Specification for
1
Nuclear Grade Zirconium Oxide Pellets
This standard is issued under the fixed designation C 1066; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope
1.1 This specification applies to pellets of stabilized zirconium oxide used in nuclear reactors.
1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
2. Referenced Documents
2
2.1 ASTM Standards:
C 559 Test Method for Bulk Density by Physical Measurements of Manufactured Carbon and Graphite Articles
C 859 Terminology Relating to Nuclear Materials
C 1065 Specification for Nuclear-Grade Zirconium Oxide Powder
E 105 Practice for Probability Sampling of Materials
3
2.2 ANSI Standard:
ANSI/ASME NQA-1 Quality Assurance Program Requirements for Nuclear Facility Applications
4
2.3 U.S. Government Document:
CodeofFederalRegulations,Title10, Part50–Energy(10CFR50)DomesticLicensingofProductionandUtilizationFacilities
3. Terminology
3.1 Terms shall be defined in accordance with Terminology C 859, except for the following:
3.1.1 buyer—the organization issuing the purchase order.
3.1.2 pellet—a fabricated geometric shape of zirconiumoxide having a chemical composition as described in Section 4.
3.1.3 pellet lot—the pellets produced from one zirconium oxide powder lot using one set of process parameters. Pellet lot size
shall be agreed upon between the seller and the buyer.
3.1.4 phase transformation—the rearrangement of the atomic ordering of a crystalline lattice as a material is cycled through a
critical transformation or inversion temperature. The change from one crystalline phase to another may be accompanied by a
volume change that could lead to cracks or defects in articles fabricated from such materials.
3.1.5 powder lot—a specified quantity of zirconium-oxide powder with stabilizing additive, blended together such that samples
taken in accordance with Section 7 can be considered as representative of the entire quantity.
3.1.6 seller—the zirconium oxide pellet supplier.
3.1.7 stabilizing additive—A material which, when present in sufficient concentration in the subject material exhibiting the
phasetransformation,producesastabilizedcrystallinephasethatdoesnotundergoatransformationorinversionatanytemperature
within the expected fabrication or usage regime of the manufactured pellet.The potentially deleterious volume change is therefore
avoided.
4. Chemical Composition
4.1 The starting zirconium oxide powder shall be in accordance with Specification C 1065.
4.2 Astabilizing additive shall be used with the zirconium oxide.The recommended stabilizing additive is either calcium oxide
(CaO) or yttrium oxide (Y O ). The recommended additive concentration in the case of CaO stabilization is 4 to 8 weight %. In
2 3
1
ThisspecificationisunderthejurisdictionofASTMCommitteeC26onNuclearFuelCycleandisthedirectresponsibilityofSubcommitteeC26.03onNeutronAbsorber
Materials Specifications.
Current edition approved May 10, 1997. Published May 1998. Originally published as C1066–86. Last previous edition C1066–86.
Current edition approved July 1, 2009. Published August 2009. Originally approved in 1986. Last previous edition approved in 2004 as C 1066 – 97 (2004).
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at [e-mail]. ForAnnualBookofASTMStandards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3
Available from American National Standards Institute, 11 W. 42nd St., 13th Floor, New York, NY 10036.
3
Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036, http://www.ansi.org.
4
Available from U.S. Government Printing Office, Washington, DC 20402.
4
Available from U.S. Government Printing Office Superintendent of Documents, 732 N. Capitol St., NW, Mail Stop: SDE, Washington, DC 20401, http://
www.access.gpo.gov.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

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C1066–09
the case of Y O stabilization, the recommended additive concentration is 14 to 20 weight %.
2 3
4.3
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