Engineered
ceramic powder
Hollow spherical yttria-stabilized zirconia, with powder morphology and processing characteristics at the foundation of the system.
ADVANCED CERAMIC MATERIALS
Engineered for
the extreme.
An integrated thermal barrier coating solution, from ceramic powder and spray technology to equipment and coating verification.
THERMAL PROTECTION. MATERIAL PRECISION.Discover GAWA
Aerospace application illustration
BUILT AROUND YOUR APPLICATIONAerospace propulsionIndustrial gas turbinesAdvanced coating research
01 / H-7YSZ COATING SOLUTION
From ceramic powder
to verified coating.
Our flagship H-7YSZ hollow spherical coating solution brings material development, spray process expertise, equipment know-how and finished-coating evaluation together in one coordinated approach.
Engineered
Spray process
expertise
Coating application knowledge connects powder behavior with the deposition process and the resulting coating structure.
Spray equipment
integration
Equipment know-how supports the practical implementation of the spray process and its application requirements.
Finished-coating
evaluation
Microstructural examination, bond strength and bend testing provide evidence about the resulting coating system.
A coordinated route from material selection to coating evaluation.
Discuss the complete solution02 / MATERIAL PORTFOLIO
The right material.
For your environment.
Explore our ceramic powder portfolio for thermal barriers, environmental barriers and turbine sealing. Select a material to discuss specifications, samples and process compatibility.
THERMAL BARRIER
GWYSZ
Yttria-stabilized zirconia
Zirconia powder for conventional thermal barrier coating applications.
- Yttria content
- 6–8 wt%
- Particle size
- 37–90 μm (≥90 wt%)
- Catalog temperature
- ≤1,250 °C
More material details
- Combined ZrO₂ + Y₂O₃ + HfO₂
- ≥99.5 wt%
- Crystallite size before agglomeration
- ≤20 nm
- Tetragonal phase
- 100%
- Apparent density
- ≥1.5 g/cm³
- Flowability
- ≤60 s/50 g
THERMAL BARRIER
GWGYSZ
Multi-rare-earth stabilized zirconia
Yttria, ytterbia and gadolinia modified zirconia for advanced high-temperature thermal barriers.
- Particle size D50
- 50–70 μm
- Apparent density
- 1.84 g/cm³
- Catalog temperature
- Up to 1,500 °C
More material details
- ZrO₂ + rare-earth oxides
- ≥99.5 wt%
- Particle size D10 / D90
- 25–45 / 95–115 μm
- Crystallite size before agglomeration
- ≤50 nm
- Tetragonal phase
- ≥99%
THERMAL BARRIER
GWSSZ
Scandia-stabilized zirconia
Scandia and yttria stabilized zirconia with controlled particle size and phase composition.
- Scandia content
- 7.5 ± 0.5 wt%
- Particle size
- 37–90 μm (≥90 wt%)
- Apparent density
- ≥1.6 g/cm³
More material details
- ZrO₂ + Y₂O₃ + Sc₂O₃
- ≥99.5 wt%
- Yttria content
- 0.5 wt%
- Crystallite size before agglomeration
- ≤50 nm
- Tetragonal phase
- ≥99%
- Flowability
- ≤60 s/50 g
- Spheroidization rate
- ≥85%
THERMAL BARRIER
GWCSZ
Ceria-stabilized zirconia
Ceria and yttria stabilized zirconia for turbine coating applications requiring thermal and corrosion resistance.
- Ceria content
- 24–26 wt%
- Particle size options
- 15–45 / 11–125 μm
- Catalog temperature
- Up to 1,250 °C
More material details
- ZrO₂ + rare-earth oxides
- ≥99.5 wt%
- Yttria content
- 2–3 wt%
- Tetragonal phase
- ≥99%
THERMAL BARRIER
GWYZO
Yttrium zirconate
Y₂Zr₂O₇ ceramic powder for turbine hot-section thermal barriers and CMAS resistance evaluation.
- Yttria content
- 48 ± 1 wt%
- Particle size D50
- 25–40 μm
- Catalog temperature
- Up to 1,425 °C
More material details
- ZrO₂ + Y₂O₃ + HfO₂
- ≥99.5 wt%
- Particle size D10 / D90
- 10–25 / 40–80 μm
- Primary crystalline phase
- Y₂Zr₂O₇
- CMAS
- Calcium–magnesium–aluminosilicate deposits
PS-PVD FEEDSTOCK
GWYSZ-P
Fine yttria-stabilized zirconia
Fine ceramic feedstock designed for PS-PVD processing and the development of columnar coating microstructures.
- Deposition process
- PS-PVD
- Particle size
- 1–30 μm
- Catalog temperature
- Up to 1,200 °C
More material details
- Nominal yttria content
- 7.5 wt%
- Rare-earth oxides + ZrO₂
- ≥99.5 wt%
- Crystallite size before agglomeration
- ≤20 nm
- Tetragonal phase
- ≥99%
- Apparent density
- ≥1.1 g/cm³
ENVIRONMENTAL BARRIER
GWYbSO
Ytterbium disilicate
Yb₂Si₂O₇ powder for environmental barrier topcoats on ceramic matrix composites (CMCs).
- Material formula
- Yb₂Si₂O₇
- Particle size D50
- 30–45 μm
- Catalog temperature
- Up to 1,350 °C
More material details
- Particle size range
- 11–90 μm
- Particle size D10 / D90
- 15–25 / 60–80 μm
- Yb₂O₃ / SiO₂
- 76.63 / 23.03 wt%
- Al₂O₃ / Na₂O
- 0.06 / 0.05 wt%
ABRADABLE COATINGS
GWZYBP
Zirconia abradable powder
Zirconia, hexagonal boron nitride and polymer material for turbine hot-section abradable coatings.
- Material system
- YSZ / hBN / polymer
- Particle size D50
- 50–70 μm
- Catalog temperature
- Up to 1,150 °C
More material details
- Y₂O₃
- 7.5 wt%
- Polymer / hBN
- 4.5 / 0.7 wt%
- Combined principal constituents
- ≥99.8 wt%
- Processing note
- Post-spray heat treatment can remove the polymer to control coating porosity.
THERMAL BARRIER
Gd₂Zr₂O₇
Gadolinium zirconate
A rare-earth zirconate material for next-generation thermal barrier coating research.
- Material family
- Rare-earth zirconate
- Development focus
- Low thermal conductivity
- Material selection
- Discuss your requirements
More material details
- Application focus
- High-temperature stability and thermal barrier material development
- Grade details
- Contact our team for available particle size and composition specifications.
THERMAL BARRIER
La₂Zr₂O₇
Lanthanum zirconate
A thermally stable rare-earth ceramic for advanced thermal barrier material development.
- Material family
- Rare-earth zirconate
- Development focus
- Thermal and radiation resistance
- Material selection
- Discuss your requirements
More material details
- Application focus
- Low thermal conductivity and high-temperature material development
- Grade details
- Contact our team for available particle size and composition specifications.
THERMAL BARRIER
H-7YSZ
Hollow spherical zirconia
HOSP powder for plasma-sprayed thermal barriers, featured in our coating evaluation materials.
- Material family
- Yttria-stabilized zirconia
- Particle structure
- Hollow spherical (HOSP)
- Application
- Plasma-sprayed thermal barriers
More material details
- Source
- GAWA company presentation
- Test information
- See the separate 7YSZ coating evaluation below. Results apply to the tested specimens.
Specifications are taken from the GAWA powder catalog; H-7YSZ is described in the company presentation. Catalog temperatures are application guidance, not guaranteed service limits. Suitability depends on the coating system, deposition process and operating conditions. Confirm the grade and specification with our team before ordering.
PARTICLE ENGINEERING
Purpose in every particle.
Material chemistry is only part of the story. Morphology, particle size and processing behavior also shape the coating result. This micrograph shows the spherical structure of our H-7YSZ powder.
Our approach to powder development03 / TECHNOLOGY
Precision at
the particle level.
GAWA Coatings brings together ceramic powder research and manufacturing in Guangdong, China. Our portfolio supports material selection for APS, PS-PVD and EB-PVD processes. Grade and feedstock requirements are reviewed for each application.
Small-scale control.
High-temperature purpose.
Composition, particle structure and surface characteristics all influence the coating process. Our approach starts with the powder.
- 01
Material synthesis
Gas–liquid mixed-phase synthesis to develop ceramic compositions and control their structure.
- 02
Particle engineering
Surface modification, thermal treatment and powder processing tailored to coating feedstock requirements.
- 03
Application evaluation
Microstructural and coating tests to inform material selection and the next stage of process development.
04 / VALIDATION
Evidence behind
the material.
Coating performance needs more than a powder specification. The supplied 7YSZ coating evaluation documents microstructure, bond strength and bending behavior.
7YSZ COATING EVALUATION
Tested as a
coating system.
- 01Metallographic evaluation
Reported checks on porosity, oxides, interface contamination and unmelted particles met the stated criteria.
- 02Bond strength
Individual specimen results: 57.2, 54.8 and 41.2 MPa. The report records a passing conclusion.
- 03Bend testing
The evaluated coating system passed the report’s specified 180° bend test.
Aerovent Coating Laboratory · 21 July 2025
Report TQ-ZTC43802A/7YSZ-250701
Results apply to the specimens and test conditions in the report. They are not a universal product specification or an aircraft qualification.
Discuss test dataCOMPARATIVE COATING TESTS
Performance,
in perspective.
Furnace-cycle lifetime results for two ceramic coating families, compared with reference materials. Each series uses 24-hour furnace cycles at 1,100 °C.
8YSZ coatings
Coating lifetime at 1,100 °C · cycles
GdYb-YSZ coatings
Coating lifetime at 1,100 °C · cycles
Source: GAWA company presentation, furnace-cycle test summary. Reference material names are anonymized within each series.
These results concern the 8YSZ and GdYb-YSZ coating systems shown. They are separate from the H-7YSZ solution and the 7YSZ coating evaluation above.
About this comparison
The source presentation identifies 24-hour furnace cycles and a test temperature of 1,100 °C. It does not include the full test protocol, replicate counts or uncertainty estimates. Values are reproduced as reported and should be reviewed with the test conditions when assessing a new application.
05 / START A CONVERSATION
Your next
thermal challenge.
Let’s talk.
Tell us about your application, coating process and material requirements. Our team will follow up using the email address you provide.
HELP US UNDERSTAND YOUR PROJECT
GUANGDONG, CHINA · GAWA COATINGSUseful details include your target composition, particle size range, deposition process, operating conditions and sample quantity.