epm - nasa...lanb/22192 .• · milestone status high-speed research program fy93 epm rtop 537-04-20...

... ' EPM =, . ..... , ENABLING PROPULSION MATERIALS

HIGH-SPEED RESEARCH (HSR) PROGRAM REVIEW

EPM COMBUSTOR MATERIALS

RTOP 537-04

Waldo A. Acosta NASA Lewis Research Center

September 23, 1992

1SSM9!22

Gross R&D

Net R&D

Contract

Inhouse Critical Path

Tot. Contractual Effort

$ available for in-house alt. approaches

Program Support

CSWY

SSCWY

EPM COMBUSTOR MATERIALS Level II Summary

Pri secondary Fiber coating Composite fabrication fiber selection compositions techniques

established demonstrated

FY90 FY91 FY92 FY93 FY94 FY95 FY96 9.79 17.95 22.33 13.23 6.06

8.33 14.20 17.54 9.71 4.55

6.32 13.77 15.08 9.23 5.03

1.27 1.75 1.56 0.85 0.48

7.59 15.52 16.64 10.08 5.52

0.74 -1.33 0.89 -0.37 -0.97

1.47 3.75 4.80 3.52 1.52

9.18 21.00 21.00 21.00 21.00

3.24 2.40 2.40 2.40 2.40

JSSM9/22

.. '

EPM ENABLING PROPULSION MATERIALS

EPM COMBUSTOR MATERIALS FY

ACCOMPLISHMENTS

• Combustor technology development plan delivered

• Primary and secondary fiber selected

• Composite fabrication processes selected

• Materials evaluation test plan delivered

• Analytical models exploratory test plan delivered

SIGNIFICANCE

• ESTABLISHED PATHS FOR COMBUSTOR MATERIALS TECHNOLOGY DEVELOPMENT

• EARLY SELECTION MAXIMIZES DEVELOPMENT OPPORTUNITIES

• INITIAL SELECTION HAS COMMENCED DESIGN/MATERIALS INTERACTION

• ESTABLISHED CONSISTENT TESTING METHODOLOGY AND IDENTIFIES CRITICAL TESTS

• PROVIDES FOR SOUND METHODOLOGY FOR ANALYTICAL CODES DEVELOPMENT

JSSM9/22


PM COMBUSTOR MATERIALS FY9

PLANNED ACCOMPLISHMENTS

• Assess combustor liner primary and secondary materials

• Establish coating requirements/ preliminary coatings for selected combustor materials

• Identify NDE test methods and begin material screening

• Complete Year 2 NRA "High Speed Civil Transport Combustion Materials"

• Evaluate methodologies for mechanical testing of fiber coatings on SiC fibers

SIGNIFICANCE

• DOWNSELECT PROVIDES FOCUSED DEVELOPMENT

• IMPROVES THERMAL/ ENVIRONMENTAL RESISTANCE OF SELECTED MATERIALS

• REFINE AND/OR DEVELOP REQUIRED NDE METHODS

• ASSIST IN MATERIAL DEVELOPMENT AND DAMAGE IDENTIFICATION

• BASELINE MATERIALS PROPERTY DATABASE ESTABLISHED

• COATING PROPERTIES/ RATIONALE CAN BE DETERMINED

l I

I

Initial FiberJCoolins Requiranaus

Critical Screening

I IMC ~ Qiligl "' ~

MoSil SlmlaiDt NiAI ICIIIilc lllal&lh

I I I I

I

' I I I ' I ' I

.------,Task 8.3.0

Fiber }Coo tin& lmJWoYcmcnl

------ - - - - -- --- -- ~ ---- -----~

Materials Refinement 1 1

Process Variables

I 1

I 1

~ [ l MMC I ,. -m

I FoCrAIY

lllenMI eyeliD& rea. domosetalcnncc lhcrmollhoc:k rea oxidolion rcoilloncc

I I I .... Establish Approsc

.t.Sysacms Selection

I I

I 1 I I

I 1

I I

I I

I I I Ni-.. se aouom- I I

LiDsl.;. I

r CMC I ~ oCOIIIIic bnpedonl:c

6' lhcrmallhoc:k

Oxido-Oaide hi&h li'cqllcncy I I

oxidolion raiaance I I SiC I I

I I - - - - - - -Jt- - - - - - J[ - - - - - - -

- - - - - - - I - - - - - - 1r - - - - - - -Process Evaluation

I I I I I I

• fiba- COllin& •oaidali• • lhcrmal cycUns

Cri!jql Trills Reproducibility Scale-up como~

. . ------ ----

Cgospljdetjon

IIIP, VIIP MI. Roll Bond CVI,ECD,RI

1 n.c.os 1

·--------------------- -·

Process Selection

Composile Charac~erizalion rask B.S.O

:Vea

I 1

- - - ---- _I

System Down Selection

Figure 3-10. Technical Approach of Materials Development.

Scale-up

Deline Producli1111

Scale-up Issues

f Esllblish Process C1111trol MCihodo

• Monufactun: Full-Scale

ComponcniS


Primary /Secondary Fibers Selected

Primary fibers:

• Carborundum SiC - melt spinning from powder loaded binder

• Dow Corning SiC - melt spinning from polymer precursor

Secondary fibers:

• MER SiC - thermochemical conversion of carbon tow

• U of FL SiC - polymer precursor


Composite Fabrication Processes Selected

• melt infiltration

• Chemical Vapor Infiltration ( CVI)

• Polymer-Impregnation-Pyrolysis (SiC & Si3N4)

• liquid infiltration (SiC/MAS)


Integration

"' Combustor Design

Boundary Conditions

Component Model Coupled Structural Thermal Analysis

Local Material 4 ,/ Properties /' }'

Ply

Finite Element

Laminate

)I ~--··y ~::::..~:_~::::·:-

~~ ............. ................... .. I' ............................. ..

• ~> ..... ............................ .

·-=~~-"'

)I Constituent Material

Constituent ...... 1---1 Response/Behavior

I

I Fiber 1

Local Strains/ Stress

Decomposition

Material System Design

_____ Architecture~- ____ ~

Tailoring


Candidate NDE Methods

• High resolution ultrasonics

• Microfocus computer tomography

• Micro focus X -ray

• Film X-ray

• Thermography

• Acoustic emission

• Acousto-ultrasonic

• Dynamic resonance

MILESTONE STATUS HIGH-SPEED RESEARCH PROGRAM

FY93 EPM RTOP 537-04-20 CERAMIC MATRIX COMPOSITE COMBUSTOR 1992 1993

Activities Oct r Nov I Dec Jan I Feb I Mar T Apr I May I Jun I Jul I Aug I Sep1

20.1 Component Analysis and Development Plan

20.2 Alternate Materials and Designs

20.3 Fiber Development

20.4 Material Development, Fabrication and Composite

• Joining

20.5 Material Characterization

KEY \1 PLANNED AcnVITV

Completed

/L::,. SCHEDULED COMPLETION FOR DELAYED AcnVITV

.6. AcnVITY ACTUAL COMPLETION

Assess primary/secondary

~

Establish composite coating

requirements

\7

Begin NDE \?g

0 PLANNED OR INCOMPLETE MILESTONE

~ SCHEDULE COMPLETION FOR DELAYED MILESTONE + COMPLETED MILESTONE

Fiber coati• g testing

methodolog es

\7

OOMM043 LANB/22192 .• ·

MILESTONE STATUS HIGH-SPEED RESEARCH PROGRAM

FY93 EPM RTOP 537-04-20 CERAMIC MATRIX COMPOSITE COMBUSTOR 1992 1993

Activities Oct I Nov I Dec Jan I Feb I Mar I Apr I May I Jun Jul I Aug I Sept

UstClf

Benchmark analyticfal test plan code

20.6 Analytical Modelling and \] \] VerHicatlon ~=~n:~::n:~:~:::::::::::~:::::~=~=~=~=~===~=~=::::::::::::::::~:~n:::~:~:~:~:::::::::::::::::~:~:~:~:~:~:~:~:H~:::~:::::::::~u::::~:~:::~nnn:~n=~=~=~=~~~=~=~=~=~=~=~= n=~===~===~v=~=~=~=~=~=~=~=~===~=~=========~=~u~

20.7 Sub-component Technology Development This activity schedul ~to begin FY94

20.8 Combustor Alternative Approaches

20.9 NRA Contracts

KEY \7 PLANNED ACTIVITY

ComPlete Year:ll NRA

comract \V

~ SCHEDULED COMPLETION FOR DELAYED ACTIVITY • ACTIVITY ACTUAL COMPLETION

lde~tify

coatir ~s for SIC bers

\7

0 PLANNED OR INCOMPLETE MILESTONE

+ COMPLETED MILESTONE

lnlllate Cl C long terril durabllftl

testing

\7

OOMM044 LAN9/22192

epm - nasa...lanb/22192 .• · milestone status high-speed research program fy93 epm rtop 537-04-20...

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