GATE 2025 syllabus for Materials Science (XE-C) gives you details of the latest GATE syllabus for the subject released by the official gate organizing institute IIT Roorkee 2025. We also created an easy-to-use ad-free mobile app for the GATE syllabus, previous year papers with keys, gate calculator, virtual calculator, and more. Download iStudy App for all GATE preparation needs.
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GATE 2025 Materials Science Syllabus (XE-C)
Section 1: Classification and Structure of Materials
Classification of materials: metals, ceramics, polymers and composites.
Nature of bonding in materials: metallic, ionic, covalent and mixed bonding; structure of materials: fundamentals of crystallography, symmetry operations, crystal systems, Bravais lattices, unit cells, primitive cells, crystallographic planes and directions; structures of metals, ceramics, polymers, amorphous materials and glasses.
Defects in crystalline materials: 0-D, 1-D and 2-D defects; vacancies, interstitials, solid solutions in metals and ceramics, Frenkel and Schottky defects; dislocations; grain boundaries, twins, stacking faults; surfaces and interfaces.
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Section 2: Thermodynamics, Kinetics and Phase Transformations
Extensive and intensive thermodynamic properties, laws of thermodynamics, phase equilibria, phase rule, phase diagrams (unary and binary), basic electro chemistry.
Reaction kinetics, fundamentals of diffusion, Fick’s laws, their solutions and applications.
Solidification of pure metals and alloys, nucleation and growth, diffusional solid-state phase transformations (precipitation and eutectoid), martensitic transformation.
Section 3: Properties and Applications of Materials
Mechanical properties of metals, ceramics, polymers and composites at room temperature, stress-strain response (elastic, anelastic and plastic deformation).
Electronic properties: free electron theory, Fermi energy, density of states, elements of band theory, semiconductors, Hall effect, dielectric behaviour, piezo- and ferro-electric behaviour.
Magnetic properties: Origin of magnetism in materials, para-, dia-, ferro- and ferri-magnetism.
Thermal properties: Specific heat, heat conduction, thermal diffusivity, thermal expansion, and thermoelectricity.
Optical properties: Refractive index, absorption and transmission of electromagnetic radiation.
Examples of materials exhibiting the above properties, and their typical/common applications.
Section 4: Characterization and Measurements of Properties
X-ray diffraction; spectroscopic techniques such as UV-Vis, IR and Raman; optical microscopy, electron microscopy, composition analysis in electron microscopes.
Tensile test, hardness measurement. Electrical conductivity, carrier mobility and concentrations.
Thermal analysis techniques: thermogravimetry and calorimetry.
Section 5: Processing of Materials
Heat treatment of ferrous and aluminium alloys; preparation of ceramic powders, sintering; thin film deposition: evaporation and sputtering techniques, and chemical vapor deposition, thin film growth phenomena.
Section 6: Degradation of Materials
Corrosion and its prevention; embrittlement of metals; polymer degradation.
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GENERAL APTITUDE (Common for all branches)
Verbal Aptitude
Basic English Grammar
Tenses, articles, adjectives, prepositions, conjunctions, verb-noun agreement, and other parts of speech
Basic Vocabulary
Words, idioms, and phrases in context
Reading and Comprehension
Narrative Sequencing
Quantitative Aptitude
Data Interpretation
Data graphs (bar graphs, pie charts, and other graphs representing data), 2- and 3-dimensional plots, maps, and tables
Numerical Computation and Estimation
Ratios, percentages, powers, exponents and logarithms, permutations and combinations, and series
Mensuration and Geometry
Elementary Statistics and Probability
Analytical Aptitude
Logic
Deduction and Induction
Analogy
Numerical Relations and Reasoning
Spatial Aptitude
Transformation of Shapes
Translation, rotation, scaling, mirroring, assembling, and grouping
Paper folding, cutting, and patterns in 2 and 3 dimensions
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