Assessment of strength limiting flaws in ceramic heat exchanger components: Phase 1, Final report, September 28, 1984-June 30, 1986

Technical Report · Wed Oct 01 00:00:00 EDT 1986

DOI:https://doi.org/10.2172/5611654· OSTI ID:5611654

Powers, T.; Snyder, J.

Assurance of energy efficient design lifetimes of high temperature structural ceramics requires the ability to specify acceptance criteria and to test to those criteria. These criteria will be established through nondestructive testing, to determine which defects are detectable, together with fracture mechanics, to calculate effects of indetectable flaws. The first phase of this program is to examine heat exchanger material with four test methods which have shown promise for use in ceramics; ultrasonic scanning, microfocus x-ray, Scanning Laser Acoustic Microscope, and Acoustic Holography. The capabilities, limits, and potential for improvement of these are presented in this report. Destructive testing, material sectioning, and fractography are included. 24 refs., 68 figs., 6 tabs.

• Research Organization: Babcock and Wilcox Co., Lynchburg, VA (USA). Lynchburg Research Center
• Sponsoring Organization: USDOE
• DOE Contract Number: AC07-84ID12566
• OSTI ID: 5611654
• Report Number(s): DOE/ID/12566-T1; ON: DE88004025
• Resource Relation: Other Information: Portions of this document are illegible in microfiche products. Original copy available until stock is exhausted
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
36 MATERIALS SCIENCE
CERAMICS
MATERIALS TESTING
RESEARCH PROGRAMS
HEAT EXCHANGERS
NONDESTRUCTIVE TESTING
PROGRESS REPORT
SILICON CARBIDES
TUBES
X-RAY RADIOGRAPHY
CARBIDES
CARBON COMPOUNDS
DOCUMENT TYPES
INDUSTRIAL RADIOGRAPHY
SILICON COMPOUNDS
TESTING
420200* - Engineering- Facilities
Equipment
& Techniques
360200 - Ceramics
Cermets
& Refractories