Marjaana Karhu

Senior Scientist, M.Sc. (Eng)

20102020
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Research Output 2010 2020

2020

Utilizing mixed-mineralogy ferroan magnesite tailings as the source of magnesium oxide in magnesium potassium phosphate cement

Ismailov, A., Merilaita, N., Solismaa, S., Karhu, M. & Levänen, E., 20 Jan 2020, In : Construction and Building Materials. 231, 117098.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
Magnesium Oxide
Magnesite
Mineralogy
Magnesia
Tailings
2019
7 Citations (Scopus)

Impacts of casting scales and harsh conditions on the thermal, acoustic, and mechanical properties of indoor acoustic panels made with fiber-reinforced alkali-activated slag foam concretes

Mastali, M., Kinnunen, P., Karhu, M., Abdollahnejad, Z., Korat, L., Ducman, V., Alzaza, A. & Illikainen, M., 2019, In : Materials. 12, 5, 825.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
Acoustic properties
Alkalies
Slags
Foams
Casting

Magnesite-rich mining tailings as a raw material for refractory ceramics: Microstructural and thermal analysis

Karhu, M., Lagerbom, J., Solismaa, S. & Huttunen-Saarivirta, E., 1 Jan 2019, In : Proceedings of the Estonian Academy of Sciences. 68, 2, p. 145-149 5 p.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
2 Citations (Scopus)

Mining tailings as raw materials for reaction-sintered aluminosilicate ceramics: Effect of mineralogical composition on microstructure and properties

Karhu, M., Lagerbom, J., Solismaa, S., Honkanen, M., Ismailov, A., Räisänen, M. L., Huttunen-Saarivirta, E., Levänen, E. & Kivikytö-Reponen, P., 1 Mar 2019, In : Ceramics International. 45, 4, p. 4840-4848 9 p.

Research output: Contribution to journalArticleScientificpeer-review

Mullite
Aluminosilicates
Tailings
Raw materials
Microstructure

Report on the economic assessment of substitution trajectories: SCRREEN Deliverable D5.3

Karhu, M., Bacher, J., Yli-Rantala, E., Huttunen-Saarivirta, E., Nieves Cordones, P., Martel Martin, S. & del Corte Sanz, M., 26 Feb 2019, European Union. 108 p.

Research output: Book/ReportReport

Open Access
substitution
value chain
economics
economy
2018

Circular Economy and zero waste aspects and business models of production: SCRREEN Deliverable D4.3

Karhu, M., Kotnis, J., Yang, Y., Menger, P., Garcia Uriarte, A., Kaunisto, K., Huttunen-Saarivirta, E., Yli-Rantala, E., Sundqvist Ökvist, L., Hu, X., Retegan, T., Gonzáles-Moya, M., Samouhos, M., Taxiarchou, M., Drzazga, M. & Niedbala, J., 6 May 2018, European Union. 208 p.

Research output: Book/ReportReport

Open Access
Industry
Energy efficiency
Toxicity
Raw materials
Processing
15 Citations (Scopus)

Mechanical and acoustic properties of fiber-reinforced alkali-activated slag foam concretes containing lightweight structural aggregates

Mastali, M., Kinnunen, P., Isomoisio, H., Karhu, M. & Illikainen, M., 30 Oct 2018, In : Construction and Building Materials. 187, p. 371-381 11 p.

Research output: Contribution to journalArticleScientificpeer-review

Acoustic properties
Alkalies
Slags
Foams
Concretes
Powders
Raw materials
Cobalt
manufacturing
routes

The effect of carbon and nickel additions on the precursor synthesis of Cr3C2-Ni nanopowder

Kaunisto, K., Kotilainen, M., Karhu, M., Lagerbom, J., Vuorinen, T., Honkanen, M., Vippola, M. & Turunen, E., 1 Jun 2018, In : Ceramics International. 44, 8, p. 9338-9346 9 p.

Research output: Contribution to journalArticleScientificpeer-review

Nickel
Carbon
Powders
Chromium
Carbides
4 Citations (Scopus)

Valorization of Finnish mining tailings for use in the ceramics industry

Solismaa, S., Ismailov, A., Karhu, M., Sreenivasan, H., Lehtonen, M., Kinnunen, P., Illikainen, M. & Räisänen, M. L., 2018, In : Bulletin of the Geological Society of Finland. 90, p. 33-54 22 p.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
tailings
ceramics
phlogopite
mica
ceramics industry

Valorization of the steel industry slag and by-products as raw material asset for innovative refractories

Karhu, M., Piotrowska, P., Talling, B., Hum, J., Boccaccini, A. R. & Lintunen, P., 2018.

Research output: Contribution to conferenceConference AbstractScientific

Iron and steel industry
Refractory materials
Slags
Byproducts
Raw materials
2017

Characterisation of steel industry slag suitability as raw material for refractory castables

Karhu, M., Lintunen, P., Lagerbom, J. & Lindroos, T., 2017, 5th International Slag Valorisation Symposium . KU Leuven, p. 71-74

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientific

Iron and steel industry
Refractory materials
Slags
Raw materials
Cements
Open Access

Nanostructural WC-Co coatings by utilizing novel powder manufacturing route using water soluble raw materials

Karhu, M., Lagerbom, J., Kaunisto, K., Suhonen, T., Lindroos, T. & Turunen, E., 1 Jan 2017, International Thermal Spray Conference and Exposition, ITSC 2017. Vol. 1. p. 451-455 5 p.

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientific

Powders
Raw materials
manufacturing
routes
coatings

Printed Circuit Boards residues for electroless plating applications

Kaunisto, K., Kinos, T., Karhu, M. & Kivikytö-Reponen, P., 2017. 1 p.

Research output: Contribution to conferenceConference PosterScientific

Open Access

Reaction Heat Utilization in Aluminosilicate-Based Ceramics Synthesis and Sintering

Karhu, M., Lagerbom, J., Kivikytö-Reponen, P., Ismailov, A. & Levänen, E., 1 Mar 2017, In : Journal of Ceramic Science and Technology. 8, 1, p. 101-112 12 p.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
Aluminosilicates
Sintering
Aluminum
Kaolin
Kaolinite

Secondary materials for extreme conditions as a circular design trend

Kivikytö-Reponen, P., Karhu, M. & Lindroos, T., 2017.

Research output: Contribution to conferenceConference PosterScientific

2016
10 Citations (Scopus)

Chemical synthesis of WC-Co from water-soluble precursors : the effect of carbon and cobalt additions to WC synthesis

Kanerva, U., Karhu, M., Lagerbom, J., Kronlöf, A., Honkanen, M., Turunen, E. & Laitinen, T., 2016, In : International Journal of Refractory Metals and Hard Materials. 56, p. 69-75

Research output: Contribution to journalArticleScientificpeer-review

Cobalt
Carbon
Water
Phase structure
Chemical analysis

Exothermic assisted synthesis of mullite and spinel based ceramics

Karhu, M., Lagerbom, J. & Kivikytö-Reponen, P., 2016.

Research output: Contribution to conferenceConference articleScientific

porcellanite
ceramics
spinel
tailings
oxide

Preparing nano-structural WC-Co coatings by utilizing novel powder manufacturing route

Suhonen, T., Kanerva, U., Karhu, M., Lagerbom, J., Vuorinen, T., Laitinen, T. & Turunen, E., 2016, Thermal Spray: Fostering a sustainable world for a better life!.

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientific

Powders
Coatings
Carbides
Cobalt
Raw materials

Preparing nano structural WC-Co powders by utilizing soluble raw materials by spray drying and synthesis method

Sinilehto, H-M., Kanerva, U., Karhu, M., Lagerbom, J., Vuorinen, T., Lindroos, T. & Turunen, E., 2016, PARTEC 2016 : Book of Abstracts.

Research output: Chapter in Book/Report/Conference proceedingConference abstract in proceedingsScientific

Spray drying
Raw materials
Powders
Particle size
Phase structure

Reaction heat potential utilization in mullite and spinel based ceramics synthesis and sintering

Karhu, M., Lagerbom, J., Kivikytö-Reponen, P., Lindroos, T. & Laitinen, T., 2016, In : Mechanik. 5-6, p. 520-521

Research output: Contribution to journalArticleScientificpeer-review

Open Access
Mullite
Sintering
Exothermic reactions
Energy conservation
Raw materials

Reaction heat utilization potential in mullite and spinel based ceramics synthesis and sintering

Karhu, M., Lagerbom, J. & Kivikytö-Reponen, P., 2016.

Research output: Contribution to conferenceConference articleScientific

Sintering
Exothermic reactions
Raw materials
Phase structure
Energy balance

Synthesis of nano structural Cr3C2 powders from water soluble precursors

Lagerbom, J., Karhu, M., Vuorinen, T., Lindroos, T. & Turunen, E., 2016, Proceedings of PARTEC 2016.

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Carbides
Thermal spraying
Powders
Wear of materials
Water
2015

Geometriapohjaisen ohjelmiston (GeoDict) mahdollisuudet ja soveltuvuus avosoluisen vaahtorakenteen akustisten ominaisuuksien ennustamiseen

Karhu, M., Lindroos, T. & Miettinen, A., 2015, Akustiikkapäivät 2015. Akustinen Seura ry, 7 p.

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsProfessional

Open Access

Novel titanium carbide based hard metal alternative for traditional WC-Co

Lindroos, T., Lintunen, P., Karhu, M. & Kemppainen, J., 2015, Proceedings of International Power Metallurgy Congress and Exhibition, Euro PM2015. European Power Metallurgy Association EPMA

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientific

Titanium carbide
Cobalt
Metals
Carbides
Chemical analysis

Sintering of nano structural WC with cobalt matrix synthesised from soluble raw materials

Lagerbom, J., Kanerva, U., Karhu, M., Turunen, E., Lotta, J., Cura, E. & Hannula, S-P., 2015, EURO PM2015 congress proceedings. European Power Metallurgy Association EPMA

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Cobalt
Powders
Raw materials
Sintering
Carbides

Sustainable design driven philosophy: case studies of sustainable materials and processing

Karhu, M. & Kivikytö-Reponen, P., 2015.

Research output: Contribution to conferenceConference PosterScientific

manufacturing
material
software
metal
energy

Synthesis of nano structural WC-Co powders from water soluble precursors: Effects of tungsten source and synthesis atmosphere on chemical and phase structure evolutions

Kanerva, U., Karhu, M., Lagerbom, J., Kronlöf, A. & Turunen, E., 2015, Abstract Book of the 39th International Conference and Expo on Advanced Ceramics and Composites, ICACC’15. American ceramic society, p. 58

Research output: Chapter in Book/Report/Conference proceedingConference abstract in proceedingsScientific

Tungsten
Phase structure
Powders
Raw materials
Ammonium Compounds

Synthesis of nano structural WC-Co powders from water soluble precursors: effects of carbon content to chemical and phase structure

Kanerva, U., Karhu, M., Lagerbom, J., Kronlöf, A. & Turunen, E., 2015, ECerS 2015: Book of abstracts.

Research output: Chapter in Book/Report/Conference proceedingConference abstract in proceedingsScientific

Phase structure
Powders
Carbon
Water
Carbides
12 Citations (Scopus)
Tungsten
Phase structure
Raw materials
Carbon
Glycine
2014

Improving sustainability through material design

Kivikytö-Reponen, P., Karhu, M. & Salmi, O., 2014.

Research output: Contribution to conferenceConference AbstractScientific

Sustainable development
Processing
Energy utilization
Energy efficiency
Life cycle
8 Citations (Scopus)

Manufacturing and modelling of sintered micro-porous absorption material for low frequency applications

Karhu, M., Lindroos, T. J. & Uosukainen, S., 2014, In : Applied Acoustics. 85, p. 150-160 11 p.

Research output: Contribution to journalArticleScientificpeer-review

material absorption
manufacturing
low frequencies
foams
laminates

Sustainable material design aspects through WC/Co substitution case study

Karhu, M., Laukkanen, A., Pinomaa, T., Andersson, T. & Kivikytö-Reponen, P., 2014, Minerals in Circular Economy: Book of abstracts. VTT Technical Research Centre of Finland, p. 60-61 (VTT Technology; No. 192).

Research output: Chapter in Book/Report/Conference proceedingConference abstract in proceedingsScientific

Open Access
2012
7 Citations (Scopus)

Microstructure analysis and damage patterns of thermally cycled Ti-49.7Ni (at.%) wires

Karhu, M. & Lindroos, T., 1 Mar 2012, In : Smart Materials and Structures. 21, 3, 035008.

Research output: Contribution to journalArticleScientificpeer-review

wire
Wire
damage
microstructure
Microstructure
2011

Oxygen enrichment by artificial lungs

Vuorinen, T., Puhakka, E., Kauranen, P., Karhu, M., Wikström, L., Häkkinen, S. T., Wilhelmson, A., Wahlström, R. & Pitkänen, P., 2011, ICOM 2011: Poster session 2 - Abstracts. ICOM1040

Research output: Chapter in Book/Report/Conference proceedingConference abstract in proceedingsScientific

Oxygen
Air
Power generation
Energy utilization
Molecules

R-phase actuated SMA composites in adaptive wind turbine blade trailing edge

Lindroos, T., Karhu, M., Jussila, V. & Sippola, M., 2011.

Research output: Contribution to conferenceConference articleScientific

Shape memory effect
Wind turbines
Turbomachine blades
Wire
Composite materials
2010

Long-term behaviour of binary Ni-Ti SMA wires

Karhu, M. & Lindroos, T., 2010, S(3)T 2010, School and symposium on smart structural systems technologies. Porto, Portugal, 530

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientific

Wire
Fatigue of materials
Actuators
Heat treatment
Plastic deformation
11 Citations (Scopus)

Long-term behaviour of binary Ti-49.7Ni (at.%) SMA actuators - The fatigue lives and evolution of strains on thermal cycling

Karhu, M. & Lindroos, T., 1 Nov 2010, In : Smart Materials and Structures. 19, 11, 115019.

Research output: Contribution to journalArticleScientificpeer-review

spectral mixture analysis
fatigue life
Thermal cycling
Actuators
actuators