Carlos R. Ortiz Longo
Personal Data:
Born August 18, 1962. San Juan, Puerto Rico, USA.
Married, two children.
Bilingual: Fluent in English and Spanish.
Professional Interests:
Mechanical behavior of materials, material research and development, failure
analysis, experimental methods, orbital mechanics, and heat transfer analysis.
Academic Experience:
Ph.D. (In work) University of Houston, Material Science and Engineering,
Houston Texas.
(8/93 to Present) Advisor: Kenneth
W. White.
Mechanical Characterization
and fatigue damage accumulation in monolithic ceramics under cyclic loading
and high temperatures
High temperature structural ceramic matrix composites. Includes the processing
and mechanical characterization of in-situ grown silicon nitride whisker
reinforced barium aluminum silicate.
Evaluation of the fracture and mechanical behavior of cement mortar.
Development of LabView computer programs for automated controls.
GPA: 3.76/4.0
MS University of Houston, Material Science
and Engineering, Houston, Texas.
(8/93) Advisor: Kenneth W. White.
High temperature mechanical
characterization of low density fibrous insulators used in the NASA's space
shuttle.
GPA: 3.75/4.0
BS University of Puerto Rico, Mayagüez
Campus, Mechanical Engineering.
(12/84) GPA: 3.54/4.0
Fundamentals of Engineering (1984.)
Professional Experience:
10/83 to NASA, Johnson Space
Center, Houston, Texas.
Present Senior Aerospace Technician (AST)
Orbiter Thermal Protection
System Subsystem.
Development of advanced light weight insulators for Space Shuttle Orbiter
use. Aerogel infiltrated low density fibrous ceramics.
Failure analysis of high temperature
structural carbon-carbon ceramic matrix composite material used in the
space shuttle.
Various assignments in areas related to thermal control and thermal protection
systems design, and analysis. Evaluation of spacecraft systems and
equipment for all space mission phases
Design and development of
computer programs and experimental methods, created for the determination
of a spacecraft radiative heat transfer characteristics, orbital environments,
and factors that control the radiative interchange characteristics of a
system.
Conduct thermal vacuum ground
tests for verification of analyses and designs.
6/92 to University of Houston, Mechanical Engineering Department
Present Research assistant in area of mechanical behavior of structural
ceramics. Mechanical testing, microscopy (SEM, EDS, WDS, OIM), nanoindentation,
computer modeling, generation of proposals for DOD, DOE, and Air Force,
professional publications.
6/96 to College of the Mainland, Texas City Texas
7/98 Adjunct Professor, College Physics. Mechanics,
Electricity, Magnetism, Optics, and Modern Physics.
Professional Organization:
American Ceramic Society, Tau Beta Pi Engineering Honor Society
Hobbies:
Private pilot.
Aeromodeling. Member of the Academy of Model Aeronautics.
Professional Publications and Conference Presentations:
"Elevated Temperature Mechanical Behavior of Fibrous Ceramic Thermal Insulators,"
C. R. Ortiz-Longo, K. W. White, American Ceramic Society Pacific Rim Conference,
Paper SVI-7-93P, Honolulu, Hawaii, November 1993.
"Thermal Shock Behavior of Low Density Fibrous Ceramic Insulators," C.
R. Ortiz-Longo, K. W. White, American Ceramic Society Pacific Rim Conference,
Paper SVI-8-93P, Honolulu, Hawaii, November 1993.
"Elevated Temperature Mechanical Characterization of an in Situ Reinforced
Ceramic Matrix Composite: Si3N4 whisker reinforced BAS Glass Ceramic,"
K. W. White, Z. Xu, C. R. Ortiz-Longo, 96th Annual Meeting of the American
Ceramic Society, Paper SXIP-47-94, Indianapolis, IN., April 1994.
"Elevated-Temperature Fracture Characterization of Advanced Fibrous Ceramic
Thermal Insulators," C. R. Ortiz-Longo, K. W. White, J. Amer. Ceram. Soc.,
77[10], 2703-2711, 1994.
"Shuttle Plume Impingement Flight Experiment Thermal-Vacuum Qualification
and Acceptance Testing," S. L. Rickman, C. R. Ortiz-Longo, 6th Annual Spacecraft
Thermal Control Technology Workshop, The Aerospace Corporation, El Segundo,
CA, March, 1995.
"Hexacelsian to Celsian Phase Transformation Mechanisms in the Barium Aluminum
Silicate Glass Ceramic System, C. R. Ortiz-Longo, F. Yu, K. W. White,
Presented at the 97th Annual Meeting of the American Ceramic Society, Paper
SXV-25-95, Cincinnati, OH, April 1995.
"Method for the Calculation of Spacecraft Umbra and Penumbra Shadow Terminator
Points," C. R. Ortiz-Longo, S. L. Rickman, NASA-TP3547, April 1995.
"The Microstructural Characterization of In-Situ Whisker Reinforced Si3N4
/BAS Composite," F. Yu, C.R. Ortiz-Longo, K.W. White, Presented at the
Joint Fall Meeting of the American Ceramic Society, Paper 23-BP-95F, New
Orleans, LA, November 1995.
"Microstructural Studies of In-Situ Whisker Reinforced Si3N4 /BAS Composite,"
F. Yu, C.R. Ortiz-Longo, K.W. White, Presented at the 98th Annual Meeting
of the American Ceramic Society, Papers SI-14-96 and SVIIP-18-96, Indianapolis,
IN, April 1996.
"An Experimental Study of the Microstructural Mechanisms Affecting the
Strain-Softening Behavior of Mortar, R Dasgupta, J.C. Hay, K.W. White,
C.R. Ortiz-Longo, Presented at the 98th Annual Meeting of the American
Ceramic Society, Paper T-40-96, Indianapolis, IN, April 1996.
"The Thermal Synthesizer System," M. Welch, C. R. Ortiz-Longo, Presented
at the 7th Thermal and Fluids Analysis Workshop (TFAWS), NASA Lewis Research
Center, Cleveland, OH, April 1996.
"The Microstructural Characterization of In-Situ Grown Si3N4 Whisker Reinforced
Barium Aluminum Silicate Ceramic Matrix Composite, F. Yu, C. R. Ortiz-Longo,
K.W. White, Accepted for publication by the Journal of Material Science,
January 1997.
"The Microstructural-Creep Behavior Relationship of Si3N4/Barium Aluminum
Silicate (BAS) Ceramic Matrix Composite," C. R. Ortiz-Longo, F. Yu, N.
Nagarajan, K.W. White, 99th Annual Meeting of the American Ceramic Society,
Paper SXVI-49a-97, Cleveland, OH, April 1997.
"A Composite Thermal Superinsulator Incorporating Silica Aerogel," J. Wittenauer,
S. Lovejoy, K. Benner and C. R. Ortiz-Longo, Presented at the 49th
Pacific Coast Regional and Basic Science Division Meeting of the American
Ceramic Society, Paper PCSVIII-019-97, San Francisco, CA, October 1997.
"A Model of the Creep Behavior-Microstructural Relationship of a High Temperature
Fibrous Ceramic Composite Insulator, C. R. Ortiz-Longo, K. Ravi-Chandar,
K.W. White, a white paper, 1997.
"Microstructural Studies of the Mechanisms Influencing the Strain-Softening
Behavior of Mortar," R. Dasgupta, J.C. Hay, C. R. Ortiz-Longo, K.W. White,
Cement and Concrete Research, 28 [10], 1429-1444, 1998.
"Study of the Fatigue Damage Accumulation Mechanisms in Monolithic Ceramics,"
R. Geraghty, C. R. Ortiz-Longo, K.W. White, 101st Annual meeting of the
American Ceramics Society, Indianapolis, IN, May 1999.
Interfacial Phenomena in the Fatigue Crack Growth Behavior of Monolithic
Ceramics, C.R. Ortiz-Longo, R. Geragthy, L. Olasz, and K.W. White, Abstract
submitted to the 51st Pacific Coast Regional Meeting (PCRM) and the ACerS
Basic Science and Electronics Divisions Meeting, Bellevue, WA, Oct. 27-29,
1999
Awards and Recognition:
NASA Group Achievement Award, ORS Flight Experiment, 1986.
NASA Productivity Improvement Award, New TCS Blanket Inspection Method,
1989.
Golden Eagle Award, TCS Inspection, 1989.
NASA Productivity Improvement Award, Thermal Interactive Mission Evaluation
System (TIMES-89), 1989
Silver Snoopy Award, STS-40 Payload Bar Door Seal Anomaly, 1991.
NASA Fellowship Program, 1992.
NASA Group Achievement Award, Shuttle Plume Impingement Flight Experiment,
1995.
Space Act Award, Thermal Interactive Mission Evaluation System, 1995.
AR&SD Elite Team Award, Letter of Recognition from the Chief of the
Automation, Robotics, and Simulation Division, for support given to operational
evaluation of the FGB grapple fixture.
Space Act Award, Thermal Synthesizer System, TSS, 1996
Letter of Recognition from the NASA Administrator, Daniel S. Goldin,
for contributions in the development of the Quantitative Risk Assessment
System (QRAS) model, 1997
NASA Group Achievement Award, Space Shuttle Risk Model Team, 1998
NASA Group Achievement Award, Space Station Phase 1 Program Team, 1998
NASA Group Achievement Award, Orbiter Upgrades Definition Team, 1998
Various Outstanding Performance Ratings, and Performance Awards, 1985-1997
Chairman, Thermal and Fluids Analysis Workshop (TFAWS), International
Conference, NASA JSC, 1997