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 04:00:00 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
• Country of Publication: United States
• Language: English

Related Subjects

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